Encyclopedia - Trigonal

A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z
By classes By crystal systems  By chemistry Mineral list
Minerals for sale Encyclopedia  Glossary

All minerals 1€ to 20€ 20€ to 100€ 100€ to 250€ Up to 250€

All minerals 1€ to 20€ 20€ to 100€ 100€ to 250€ Up to 250€All minerals 1€ to 20€ 20€ to 100€ 100€ to 250€ Up to 250€

MINERALS OF TRIGONAL SYSTEM

.

Afghanite

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : (Na,Ca,K)₈(AlSiO₄)₆(SO₄,Cl₂,CO₃)₃ 0,5H₂O
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Agate

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : SiO₂
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Alunite

Class : Sulphates, chromates, molybdates
Subclass : Anhydrous sulphates
Crystal system : Trigonal
Chemistry : KAl₃(SO₄)₂(OH)₆
Rarity : Fairly common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Amethyst

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : SiO₂
Rarity : Quite common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Ametrine

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : SiO₂
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Andersonite

Class : Carbonates, Nitrates, Borates
Subclass : Uranyl carbonates
Crystal system : Trigonal
Chemistry : Na₂Ca(UO₂)(CO₃)₃ 6H₂O
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Ankerite

Class : Carbonates, Nitrates, Borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : CaFe(CO₃)₂
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Antimony

Class : Elements
Subclass : Metalloids
Crystal system : Trigonal
Chemistry : Sb
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Arsenic

Class : Elements
Subclass : Metalloids
Crystal system : Trigonal
Chemistry : As
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Asbolane

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : (Co,Ni)_xMn(O,OH)₄ nH₂O
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Beudantite

Class : Sulphates, chromates, molybdates
Subclass : Anhydrous sulphates
Crystal system : Trigonal
Chemistry : PbFe₃(AsO₄)(SO₄)(OH)₆
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Bismuth

Class : Elements
Subclass : Metalloids
Crystal system : Trigonal
Chemistry : Bi
Rarity : Fairly common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Brucite

Class : Oxides and hydroxides
Subclass : Hydroxides
Crystal system : Trigonal
Chemistry : Mg(OH)₂
Rarity : Quite common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Buergerite

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : NaFe₃Al₆(BO₃)₃Si₆O₁₈(O,F,OH)₄
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Chalcedony

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : SiO₂
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Calcite

Class : Carbonates, nitrates, borates, iodates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : CaCO₃
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Cerite

Class : Silicates
Subclass : Nesosilicates
Crystal system : Trigonal
Chemistry : Ce₉(Mg,Fe)(SiO₄)₆(SiO₃OH)(OH)₃
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Chalcophanite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : ZnMn₃O₇ 3H₂O
Rarity : Quite common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Chalcophyllite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Trigonal
Chemistry : Cu₁₈Al₂(AsO₄)₄(SO₄)₃(OH)₂₄ 36H₂O
Rarity : Uncommon to rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Cinnabar

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Trigonal
Chemistry : HgS
Rarity : Quite common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Citrine

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : SiO₂
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Coquimbite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Trigonal
Chemistry : Fe₂(SO₄)₃ 9H₂O
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Corundum

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : Al₂O₃
Rarity : Common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Corkite

Class : Phosphates, arsenates, vanadates
Subclass : Anhydrous phosphates
Crystal system : Trigonal
Chemistry : PbFe₃(PO₄)(SO₄)(OH)₆
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Crandallite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Trigonal
Chemistry : CaAl₃(PO₄)₂(OH)₅ H₂O
Rarity : Common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Crichtonite

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : (Sr,La,Ce,Y)(Ti,Fe,Mn)₂₁O₃₈
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Cronstedtite

Class : Silicates
Subclass : Phyllosilicates
Crystal system : Trigonal
Chemistry : Fe₃(SiFe)O₅(OH)₄
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Delafossite

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : CuFeO₂
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Digenite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Trigonal
Chemistry : Cu₉S₅
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Dioptase

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : CuSiO₃ H₂O
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Dolomite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : CaMg(CO₃)₂
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Dravite

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : NaMg₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Rarity : Common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Dussertite

Class : Phosphates, arsenates, vanadates
Subclass : Anhydrous arsenates
Crystal system : Trigonal
Chemistry : Ba(Fe,Sb)₃(AsO₄)₂(OH,H₂O)
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Eifelite

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : KNa₃Mg₄Si₁₂O₃₀
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Elbaite

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : Na(Al,Li)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Eskolaite

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : Cr₂O₃
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Ettringite

Class : Sulphates, chromates, molybdates
Subclass : Hydrated sulphates
Crystal system : Trigonal
Chemistry : Ca₆Al₂(SO₄)₃(OH)₁₂ 26H₂O
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Eucryptite

Class : Silicates
Subclass : Nesosilicates
Crystal system : Trigonal
Chemistry : LiAlSiO₄
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Eudialyte

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : Na₄(Ca,Ce,Fe)₃ZrSi₆O₁₇ (OH,Cl)₂
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Ferrinatrite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Trigonal
Chemistry : Na₃Fe(SO₄)₃ 3H₂O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Fibroferrite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Trigonal
Chemistry : Fe(SO₄)(OH) 5H₂O
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Gaspeite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : (Ni,Mg,Fe)CO₃
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Geikielite

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : MgTiO₃
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Goyazite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Trigonal
Chemistry : SrAl₃(PO₄)₂(OH)₅ H₂O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Gratonite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Trigonal
Chemistry : Pb₉As₄S₁₅
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Heazlewoodite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Trigonal
Chemistry : Ni₃S₂
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Hematite

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : Fe₂O₃
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Hydrocerussite

Class : Carbonates, nitrates, borates
Subclass : Hydrated carbonates
Crystal system : Trigonal
Chemistry : Pb₃(CO₃)₂(OH)₂
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Ilmenite

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : FeTiO₃
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Jarosite

Class : Sulfates, chromates, molybdates
Subclass : Anhydrous sulfates
Crystal system : Trigonal
Chemistry : KFe₃(SO₄)₂(OH)₆
Rarity : Common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Karelianite

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : V₂O₃
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Kutnahorite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : CaMn(CO₃)₂
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Leifite

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : Na₂(Si,Al,Be)₇(O,OH,F)₁₄
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Lévyne

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : (Ca,Na₂,K₂)Al₂Si₄O₁₂ 6H₂O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Liddicoatite

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : Ca(Li,Al)₃Al₆(BO₃)₃Si₆O₁₈(O,OH,F)₄
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Lithiophorite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : (Al,Li)MnO₂(OH)₂
Rarity : Quite common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Magnesite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : MgCO₃
Rarity : Common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Mercury

Class : Elements
Subclass : Metals
Crystal system : Trigonal
Chemistry : Hg
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Millerite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Trigonal
Chemistry : NiS
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Namuwite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Trigonal
Chemistry : (Zn,Cu)₄SO₄(OH)₆ 4H₂O
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Natroalunite

Class : Sulfates, chromates, molybdates
Subclass : Anhydrous sulfates
Crystal system : Trigonal
Chemistry : NaAl₃(SO₄)₂(OH)₆
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Natrojarosite

Class : Sulfates, chromates, molybdates
Subclass : Anhydrous sulfates
Crystal system : Trigonal
Chemistry : NaFe₃(SO₄)₂(OH)₆
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Nitratine

Class : Carbonates, nitrates, borates
Subclass : Nitrates
Crystal system : Trigonal
Chemistry : NaNO₃
Rarity : Quite common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Otavite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : CdCO₃
Rarity : Rare to very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Paratacamite

Class : Halides
Subclass : Oxychlorides
Crystal system : Trigonal
Chemistry : Cu₂Cl(OH)₃
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Parisite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : Ca(Ce,La,Nd)₂(CO₃)₃F₂
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Pearceite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Trigonal
Chemistry : Ag₁₆As₂S₁₁
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Pezzottaite

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : Cs(Be₂Li)Al₂(Si₆O₁₈)
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Phenakite

Class : Silicates
Subclass : Nesosilicates
Crystal system : Trigonal
Chemistry : Be₂SiO₄
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Philipsbornite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated arsenates
Crystal system : Trigonal
Chemistry : PbAl₃(AsO₄)₂(OH)₅ H₂O
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Pietersite

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : SiO₂
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Plumbogummite

Class : Phosphates, arsenates, vanadates
Subclass : Hydrated phosphates
Crystal system : Trigonal
Chemistry : PbAl₃(PO₄)₂(OH)₅ H₂O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Plumbojarosite

Class : Sulfates, chromates, molybdates
Subclass : Anhydrous sulfates
Crystal system : Trigonal
Chemistry : PbFe₆(SO₄)₄(OH)₁₂
Rarity : Quite common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Portlandite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : Ca(OH)₂
Rarity : Rare to uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Proustite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Trigonal
Chemistry : Ag₃AsS₃
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Pyrargyrite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Trigonal
Chemistry : Ag₃SbS₃
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Pyrochroite

Class : Oxides and hydroxides
Subclass : Hydroxides and hydrates
Crystal system : Trigonal
Chemistry : Mn(OH)₂
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Pyrophanite

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : MnTiO₃
Rarity : Fairly common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Pyrosmalite

Class : Silicates
Subclass : Phyllosilicates
Crystal system : Trigonal
Chemistry : (Fe,Mn)₈Si₆O₁₅(OH,Cl)₁₀
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Quartz

Class : Silicates
Subclass : Tectosilicates
Crystal system : Trigonal
Chemistry : SiO₂
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Rhodochrosite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : MnCO₃
Rarity : Common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Rubellite

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : Na(Al,Li)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Ruby

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : Al₂O₃
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Sapphire

Class : Oxides and hydroxides
Subclass : Oxides
Crystal system : Trigonal
Chemistry : Al₂O₃
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Schorl

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : NaFe₃Al₆(BO₃)₃Si₆O₁₈(O,F,OH)₄
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Schulenbergite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Trigonal
Chemistry : (Cu,Zn)₇(SO₄,CO₃)₂(OH)₁₀ 3H₂O
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Selenium

Class : Elements
Subclass : Non-metals
Crystal system : Trigonal
Chemistry : Se
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Siderite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : FeCO₃
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Slavikite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Trigonal
Chemistry : NaMg₂Fe₅(SO₄)₇(OH)₆ 33H₂O
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Smithsonite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : ZnCO₃
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Spangolite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Trigonal
Chemistry : Cu₆AlSO₄(OH)₁₂Cl 3H₂O
Rarity : Fairly common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Spherocobaltite

Class : Carbonates, nitrates, borates
Subclass : Anhydrous carbonates
Crystal system : Trigonal
Chemistry : CoCO₃
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Steenstrupine

Class : Silicates
Subclass : Sorosilicates
Crystal system : Trigonal
Chemistry : Na₁₄Ce₆Mn₂Fe₂Zr(Si₆O₁₈)₂(PO₄)₇(OH)₂ 3H₂O
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Stichtite

Class : Carbonates, nitrates, borates
Subclass : Hydrated carbonates
Crystal system : Trigonal
Chemistry : Mg₆Cr₂(CO₃)(OH)₁₆ 4H₂O
Rarity : Uncommon to rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Sturmanite

Class : Sulfates, chromates, molybdates
Subclass : Hydrated sulfates
Crystal system : Trigonal
Chemistry : Ca₆Fe₂(SO₄)₂[B(OH)₄](OH)₁₂ 25H₂O
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Svanbergite

Class : Sulfates, chromates, molybdates
Subclass : Anhydrous sulfates
Crystal system : Trigonal
Chemistry : SrAl₃(PO₄)(SO₄)(OH)₆
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Takovite

Class : Carbonates, nitrates, borates
Subclass : Hydrated carbonates
Crystal system : Trigonal
Chemistry : Ni₆Al₂(CO₃)(OH)₁₆ 4H₂O
Rarity : Rare to very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Tellurium

Class : Elements
Subclass : Non-metals
Crystal system : Trigonal
Chemistry : Te
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Tetradymite

Class : Sulfides and sulfosalts
Subclass : Tellurides
Crystal system : Trigonal
Chemistry : Bi₂Te₂S
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Tincalconite

Class : Carbonates, nitrates, borates
Subclass : Borates
Crystal system : Trigonal
Chemistry : Na₂B₄O₅(OH)₄ 3H₂O
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Tourmaline

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : WX₃Y₆(BO₃)Si₆O₁₈(O,OH,F)₄
Rarity : Very common

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Trechmannite

Class : Sulfides and sulfosalts
Subclass : Sulfosalts
Crystal system : Trigonal
Chemistry : AgAsS₂
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Troilite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Trigonal
Chemistry : FeS
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Uvite

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : Ca(Mg,Fe)₃Al₅Mg(BO₃)₃Si₆O₁₈(OH,F)₄
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Valleriite

Class : Sulfides and sulfosalts
Subclass : Sulfides
Crystal system : Trigonal
Chemistry : 4(Fe,Cu)S 3(Mg,Al)(OH)₂
Rarity : Rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Verdelite

Class : Silicates
Subclass : Cyclosilicates
Crystal system : Trigonal
Chemistry : Na(Al,Li)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Weilerite

Class : Sulfates, chromates, molybdates
Subclass : Anhydrous sulfates
Crystal system : Trigonal
Chemistry : BaAl₃(AsO₄)(SO₄)(OH)₆
Rarity : Very rare

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Whitlockite

Class : Phosphates, arsenates, vanadates
Subclass : Anhydrous phosphates
Crystal system : Trigonal
Chemistry : Ca₉(Mg,Fe)(PO₄)₆(PO₃OH)
Rarity : Uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

.

Infos

Willemite

Class : Silicates
Subclass : Nesosilicates
Crystal system : Trigonal
Chemistry : Zn₂SiO₄
Rarity : Fairly common to uncommon

Size : µm / mm / cm / dm / m

Click on the photo for more information

	ReCaptcha This service is used to secure web forms of our website and required if you want to contact us. By accepting it you agree to Google's privacy policy: https://policies.google.com/privacy
	Google Analytics Google Analytics is a service used on our website that tracks, reports traffic and measures how users interact with our website content in order for us to improve it and provide better services.
	Facebook Our website allows you to like or share its content on Facebook social network. By activating and using it you agree to Facebook's privacy policy: https://www.facebook.com/policy/cookies/
	YouTube Integrated videos provided by YouTube are used on our website. By accepting to watch them you agree to Google's privacy policy: https://policies.google.com/privacy
	Twitter Integrated tweets and share services of Twitter are used on our website. By accepting and using these you agree to Twitter's privacy policy: https://help.twitter.com/en/rules-and-policies/twitter-cookies
	PInterest Our website allows you to share its content on PInterest social network. By activating and using it you agree to PInterest's privacy policy: https://policy.pinterest.com/en/privacy-policy/

A B C D E F G H I J K L M N O P Q R S T U V W X Y ZBy classes By crystal systems By chemistry Mineral listMinerals for sale Encyclopedia Glossary

MINERALS OF TRIGONAL SYSTEM

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
By classes By crystal systems By chemistry Mineral list
Minerals for sale Encyclopedia Glossary