Iolite
Cordierite (Magnesium iron aluminium silicate)
mineral
Category
Mineral (Silicate Variety)
Browse mineral (silicate variety) specimens identified by the Rock Identifier community.
Learn about Mineral (Silicate Variety) in the encyclopedia
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Slag (Industrial By-product)
Anthropogenic Vitreous Silica/Iron Silicate
mineral
Jadeite
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Petrified Wood
Silicified Wood (primarily SiO2)
sedimentary
Blue Slag Glass
Ferro-silicate glass (Slag)
igneous (man-made/industrial)
Mica Schist
Mica Schist (Complex Silicate Rock)
metamorphic
![White Topaz (Topaz [Al2SiO4(F,OH)2]) — mineral](https://media.rockidentification.com/2c265192-c5e5-4e01-9c19-5bc3c68e2d01-thumbnail.jpg)
White Topaz
Topaz [Al2SiO4(F,OH)2]
mineral
Sandstone (Fluvial Pebble)
Arenite
sedimentary
Dalmatian Stone
Dalmatian Jasper (a trade name for an igneous microcrystalline rock composed mostly of feldspar, quartz, and dravite)
igneous
Quartz Geode Fragment
Silicon Dioxide (SiO2)
mineral
Green Kyanite
Kyanite (Al2SiO5)
mineral
Eclogite (retrograded)
Eclogite (Omphacite-Garnet rock)
metamorphic
Chrysocolla in Jasper (Chryso-Jasper)
Cu2-xAlx(H2-xSi2O5)(OH)4·n H2O (Chrysocolla) + SiO2 (Jasper)
mineral
Chrysocolla
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Glass
Amorphous Silicon Dioxide (SiO2)
mineraloid
![Arfvedsonite in Quartz (also known as Eudialyte/Garnet Syenite variety) (Arfvedsonite [Na3(Fe2+)4Fe3+Si8O22(OH)2] within a silicate matrix) — igneous](https://media.rockidentification.com/a4026c5a-8968-420a-93d2-4bffc2cc7d5f-thumbnail.jpg)
Arfvedsonite in Quartz (also known as Eudialyte/Garnet Syenite variety)
Arfvedsonite [Na3(Fe2+)4Fe3+Si8O22(OH)2] within a silicate matrix
igneous
Rhodonite in Quartz Matrix
Rhodonite (Manganese Iron Magnesium Calcium Silicate - Mn,Fe,Mg,Ca)SiO3
mineral
Basalt
Mafic volcanic rock (various silicate minerals)
igneous
Lapis Lazuli
Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, along with Calcite and Pyrite)
metamorphic
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Chondrite Meteorite
Ordinary Chondrite (Fe-Ni alloy, Olivine, Pyroxene)
Mineral
Iron Slag
Ferrous Slag (Silicate/Oxide mixture)
industrial byproduct (anthropogenic)
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Petrified Wood
Silicified Wood (primarily Quartz/Chalcedony, SiO2)
sedimentary
Veined Quartz
SiO2 (Silicon Dioxide)
Mineral
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Sandstone (Ferruginous)
Arenite (with iron oxide cement)
sedimentary
Chert with Epidote and Jasper inclusions
SiO2 (Silicon Dioxide) with Ca2(Al, Fe)3(SiO4)3(OH) inclusions
sedimentary
Tiger's Eye (Multicolor/Variegated)
Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxides)
mineral
Olivine (Peridot in gem form)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Limonite (Ironstone Concretion)
Hydrated iron(III) oxide-hydroxide (FeO(OH)·nH2O)
mineral
Sandstone with Hematite staining
Arenite with Fe2O3 inclusions
sedimentary
Sandstone (with Iron Oxide staining)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Jadeite
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
metamorphic
Greenstone (Rough Jadeite or Nephrite)
Sodium aluminum silicate (Jadeite) / Calcium magnesium iron silicate (Nephrite)
metamorphic
Lazulite
Lazulite (MgAl2(PO4)2(OH)2)
mineral
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
mineral
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrated copper and aluminum phosphate)
mineral
Sandstone (with Iron Staining)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Moonstone
Adularia (Potassium Aluminum Silicate, KAlSi3O8)
mineral