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