Granite
Phaneritic plutonic rock (Quartz, Alkali Feldspar, and Plagioclase)
igneous
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
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Granite or Porphyritic Igneous Rock (weathered)
Granitoid
Igneous
Basalt
Basalt
igneous
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate (variety of Microcline)
mineral
Amazonite
Microcline (KAlSi3O8)
mineral
Greenstone (Epidosite)
Epidosite (Metamorphosed Basalt/Diabase)
metamorphic
Agate
Cryptocrystalline quartz, SiO2
mineral
Quartz pebble / River stone
SiO2 (Silicon Dioxide)
mineral
Sodalite
Na8(Al6Si6O24)Cl2
mineral
Quartz (Common or Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Basalt with Caliche Crust
Aphanitic Mafic Igneous Rock with Calcium Carbonate (CaCO3) coating
igneous
Granite or Pegmatite with Mica
Granitoid
igneous
Granite
Granite
igneous
Citrine (Yellow Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Gneiss (foliated metamorphic rock)
Gneiss
metamorphic
Rose Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Dalmatian Stone
Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock)
igneous
Granite
Granite (a felsic intrusive igneous rock)
Igneous Rock
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Biotite Mica
K(Mg,Fe2+)3(Al,Fe3+)Si3O10(OH,F)2
Mineral
Garnet (likely Almandine or Pyrope)
Garnet (Group Name), Fe3Al2(SiO4)3 or Mg3Al2(SiO4)3
mineral
Olivine (likely Peridot variety)
Olivine Mineral Group (specifically Forsterite-Fayalite solid solution series); Chemical formula: (Mg,Fe)2SiO4
Mineral
Sodalite
Sodalite, Na8(Al6Si6O24)Cl2
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Granitic Pegmatite with Biotite
Pegmatitic Granite (contains KAlSi3O8, SiO2, K(Mg,Fe)3AlSi3O10(OH)2)
igneous
Basalt
Mafic Igneous Rock
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
White Quartz (Milky Quartz)
Quartz (Silicon Dioxide - SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Obsidian
Extrusive igneous volcanic glass
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Diorite
Diorite
igneous
Prehnite
Prehnite (Ca2Al2Si3O10(OH)2)
mineral