Ruby (Raw Corundum)
Corundum (Al2O3) with Chromium traces
mineral
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Granite
Phaneritic Plutonic Felsic Rock
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2) with Hematite/Limonite
mineral
Pyrite in Matrix
Iron Sulfide (FeS2)
mineral
Dalmatian Stone (Dalmatian Jasper)
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
igneous
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Cloudy Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Magnetite (Lodestone)
Magnetite (Fe3O4)
mineral
Pyrite
Iron Sulfide (FeS2)
mineral
Magnetite
Magnetite (Fe3O4)
mineral
Purple Dyed Dalmatian Stone
Dyed Peralkaline Trachyte
igneous
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Yellow Sapphire or Citrine
Al2O3 (Corundum) or SiO2 (Quartz)
mineral
Epidote with quartz/feldspar
Epidote, Ca2(Al,Fe)3(SiO4)3(OH)
metamorphic
Potassium Feldspar
Orthoclase (KAlSi3O8)
mineral
Blue Apatite
Apatite, Ca5(PO4)3(F,Cl,OH)
mineral
Gneiss
Gneiss
metamorphic
Pink Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Biotite (Black Mica)
Biotite - K(Mg,Fe)3(AlSi3O10)(F,OH)2
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Tumbled Moonstone
Feldspar (Orthoclase/Albite), KAlSi3O8
mineral
Chalcopyrite
Copper Iron Sulfide (CuFeS2)
mineral
Magnetic Sand Grain / Magnetite Pellet
Magnetite (Fe3O4)
mineral
![Arfvedsonite (often mistakenly sold as Astrophyllite) (Arfvedsonite [Na3(Fe2+)4Fe3+Si8O22(OH)2]) — mineral](https://media.rockidentification.com/6e8b521a-e0bc-4cec-8657-2fd2e3051a43-thumbnail.jpg)
Arfvedsonite (often mistakenly sold as Astrophyllite)
Arfvedsonite [Na3(Fe2+)4Fe3+Si8O22(OH)2]
mineral
Talc Schist / Soapstone
Talc (Mg3Si4O10(OH)2)
metamorphic
![Epidote and Quartz in Basalt (Epidote [Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)] in Metabasalt) — metamorphic](https://media.rock.id/epidote-and-quartz-in-basalt-e08bf758-8a44-4287-884d-e46154d22b80-thumbnail.jpg)
Epidote and Quartz in Basalt
Epidote [Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH)] in Metabasalt
metamorphic
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Quartz (Raw and Water-worn)
Silicon Dioxide (SiO2)
mineral
Granite fragment
Granite (Felsic Plutonic Rock)
igneous
Quartz with Mica/Host Rock
Silicon Dioxide (SiO2) with Phyllosilicates
mineral
Granite
Intrusive igneous felsic rock
igneous
Wishing Stone (Quartz-Veined Basalt)
Amygdaloidal Basalt with Quartz (SiO2) vein
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
mineral
Chalcopyrite in Quartz matrix
Chalcopyrite (CuFeS2) with secondary Malachite (Cu2CO3(OH)2)
mineral