Schist
Mica Schist
metamorphic
Category
Igneous And Mineral
Browse igneous and mineral specimens identified by the Rock Identifier community.
Learn about Igneous And Mineral in the encyclopedia
View all →
Quartz (likely a form of massive or vein quartz)
Quartz (SiO₂)
Mineral
Quartz (likely milky/rose quartz variety)
Quartz (SiO2 - Silicon Dioxide)
Mineral
Granitic Pegmatite
Pegmatite containing Quartz, Pink Potassium Feldspar, and Muscovite Mica
igneous
Ferruginous Quartz (Iron-stained Quartz)
Quartz with Iron Oxide inclusions (SiO2 with Fe2O3)
mineral
Biotite Gneiss
Gneiss (complex mixture including Biotite K(Mg,Fe)3AlSi3O10(F,OH)2 and Quartz/Feldspar)
metamorphic
Greenstone / Basalt
Aphanitic Mafic Igneous Rock (Metabasalt)
igneous
Blue Apatite
Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)
mineral
Green Aventurine
Silicon Dioxide (Quartz with Fuchsite inclusions) - SiO2
mineral
Rose Quartz
Silicon dioxide (SiO2)
mineral
Granite
Granite (Phaneritic igneous rock composed of Quartz, Feldspar, and Mica)
igneous
Granite (with Almandine Garnet inclusions)
Granite composed primarily of Quartz (SiO2), K-Feldspar (KAlSi3O8), and Almandine Garnet (Fe3Al2(SiO4)3)
igneous
Gneiss (Granitic Gneiss)
Gneiss (composed primarily of Quartz, Feldspar, and Mica/Amphibole)
metamorphic
Citrine
Silicon Dioxide (SiO2)
mineral
Quartz (Smoky/Grey variety)
Silicon Dioxide (SiO2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Sodalite
Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)
mineral
Amethyst
Crystalline Quartz (SiO2) with iron impurities
mineral
Basalt with Epidote/Chlorite
Amygdaloidal Basalt (SiO2 with (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH)))
igneous
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Corundum (Sapphire/Ruby in Matrix)
Corundum (Al2O3)
mineral
Granite Water-Worn Pebble
Intermediate to Felsic Phaneritic Igneous Rock
igneous
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
sedimentary
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
mineral
Gneiss
Gneiss
metamorphic
Milky Quartz (Water-Worn Pebble)
Silicon Dioxide (SiO2)
mineral
Basalt (Amygdaloidal)
Amygdaloidal Basalt
igneous
Granite
Granite (Mainly SiO2 and Al2O3)
igneous
Gneiss
Gneiss (Metamorphic Rock)
metamorphic
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Granite
Granite
igneous
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Basalt with Quartz Vein
Basalt (fine-grained mafic igneous rock) with crystalline Quartz (SiO2)
igneous
Basalt with Hematite staining
Extrusive mafic igneous rock with Fe2O3
igneous
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Gneiss
Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)
metamorphic
Yellow Apatite Sphere (Polished)
Fluorapatite / Ca5(PO4)3F
mineral
Gneiss (with Quartz-Feldspar vein)
Gneiss (high-grade metamorphic rock) containing Quartz (SiO2) and Feldspar (KAlSi3O8 – NaAlSi3O8 – CaAl2Si2O8)
metamorphic
Pegmatite
Granitic Pegmatite
igneous
Granite
Granite (a felsic intrusive igneous rock composed primarily of quartz, feldspar, and mica)
igneous
Quartz Pebble with Hematite Inclusion
Silicon Dioxide (SiO2)
mineral