Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Category
Mineral (Silicate Variety)
Browse mineral (silicate variety) specimens identified by the Rock Identifier community.
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Feldspar (Orthoclase)
Potassium Alveolar Silicate (KAlSi3O8)
mineral
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Feldspar (Orthoclase/Potassium Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
mineral
Moonstone (Adularia)
Potassium aluminum silicate (KAlSi3O8)
mineral
White Moonstone (Feldspar)
Potassium aluminum silicate (KAlSi3O8)
mineral
Talc
Talc (Mg₃Si₄O₁₀(OH)₂)
Mineral
Bauxite
Alumina-rich rock (consisting of Gibbsite, Boehmite, and Diaspore)
sedimentary
Slag
Anthropogenic glassy silicate
Mineral-like byproduct
Chert (Jasper-like Silicate)
Silicon Dioxide (SiO2)
sedimentary
Goethite (Iron Ore)
Goethite (FeO(OH))
mineral
African Turquoise (Jasper)
Silicon Dioxide (SiO2) - Macro-crystalline Quartz with inclusions
sedimentary
White Jade (Nephrite or Jadeite)
Tremolite-Actinolite series (Nephrite) or NaAlSi2O6 (Jadeite)
metamorphic
![Sugilite (Sugilite [KNa2(Fe,Mn,Al)2Li3Si12O30]) — mineral](https://media.rock.id/sugilite-433ceded-172b-48f9-909d-44161bc20cde-thumbnail.jpg)
Sugilite
Sugilite [KNa2(Fe,Mn,Al)2Li3Si12O30]
mineral
Rhodonite
Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3
mineral
Charoite
Charoite, K(Ca,Na)2Si4O10(OH,F)·H2O
metamorphic
Amethyst
Silicon Dioxide (SiO2) with trace Iron (Fe3+)
mineral
Eudialyte in Matrix
Na15Ca6Fe3Zr3Si26O72(OH,Cl,H2O)3
mineral
Nephrite Jade
Nephrite (a variety of the mineral actinolite within the amphibole group); Chemical Formula: Ca2(Mg,Fe)5Si8O22(OH)2
Mineral
Granitic Gneiss
Gneiss (Complex silicate composition)
metamorphic
Green Jasper (Agate-Jasper mixture)
Silicon Dioxide (SiO2) with impurities
sedimentary
Amazonite (likely mixed with other feldspars/minerals)
Amazonite is a variety of Microcline, which is a tectosilicate mineral, formula KAISi3O8. The mixed beads could include other feldspars or quartz.
Mineral
Diorite (Salt and Pepper Rock)
Diorite
igneous
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Diorite
Diorite (plutonic igneous rock)
igneous
Garnet (likely Almandine or a blend)
Garnet group: X3Y2(SiO4)3, where X can be Ca, Mg, Fe2+, Mn2+ and Y can be Al, Fe3+, Cr3+. Given the dark, somewhat reddish-brown appearance in the image, it's likely Almandine (Fe3Al2(SiO4)3) or a mix with other iron-rich garnets.
Mineral
Chert (Jasper)
Silicon Dioxide (SiO2)
sedimentary
Aragonite (Banded Calcite / 'Mexican Onyx')
Aragonite (Calcium Carbonate - CaCO3)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Orthoclase (Potassium) Feldspar in Quartz
KAlSi3O8 (Potassium Aluminum Silicate)
igneous
Diorite
Intrusive Igneous Diorite
igneous
Rhodonite
Manganese Inosilicate (Mn,Fe,Mg,Ca)SiO3
mineral
Rhodonite Tumbled Chips
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Satin Spar (Gypsum)
Calcium Sulfate Dihydrate (CaSO4·2H2O)
mineral
Sandstone (Banded)
Clastic Sedimentary Rock (primarily SiO2 with Iron Oxide staining)
sedimentary
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Diorite
Intrusive Igneous Diorite
igneous
Pyrite on Quartz
Iron Sulfide (FeS2) on Silicon Dioxide (SiO2)
mineral
Chrysocolla
Chrysocolla: Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O
mineral
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nHeO)
mineral
Red Jasper
Jasper (Silicate Mineral), SiO2 with Fe2O3 inclusions
sedimentary
Dragon Blood Jasper
Epidote with Pietersite or Red Jasper (Silicate mineral)
metamorphic