Granite
Granite (Felsic Intrusive Igneous Rock)
igneous
Category
Minerals
Browse minerals specimens identified by the Rock Identifier community.
Learn about Minerals in the encyclopedia
View all →
Limonite (Ironstone)
Limonite (Hydrated iron(III) oxide-hydroxide, FeO(OH)·nH2O)
mineral
Greenschist
Chlorite schist
metamorphic
Rhodonite (in matrix)
Rhodonite (Mn,Fe,Mg,Ca)SiO3
Mineral
Granite
Phaneritic plutonic igneous rock (SiO2 range 65-75%)
igneous
Nephrite Jade
Ca2(Mg, Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)
metamorphic
Pegmatite (Granitic) with Tourmaline
Granitic Pegmatite (containing Schorl and Quartz)
igneous
Granitic Pegmatite
Pegmatite (composed primarily of Quartz, Feldspar, and Muscovite mica)
igneous
Moonstone (Orthoclase Feldspar)
(K,Na)AlSi3O8
mineral
Limonite (Iron-rich Gossan/Laterite)
FeO(OH)·nH2O (Hydrated Iron Oxide)
mineral
Gneiss
Gneiss
metamorphic
Chalcopyrite in Quartz (Gold-bearing Ore)
CuFeS2 (Chalcopyrite)
mineral
Magnetite (Iron Ore)
Magnetite (Fe3O4)
mineral
Green Schist
Greenschist
metamorphic
Blue Apatite
Fluorapatite / Ca5(PO4)3F
mineral
Limonite-stained Gossan/Ironstone
Goethite and Hematite (Fe2O3 • nH2O)
sedimentary
Granite Gneiss
Gneiss (High-grade metamorphic rock)
metamorphic
Gneiss
High-grade metamorphic rock (Gneiss)
metamorphic
Basalt
Mafic extrusive igneous rock
igneous
Granite Pebble
Granitoid (comprised of Quartz, Feldspar, and Mica)
igneous
Diamond
Diamond (pure Carbon, C)
mineral
Diamond
Diamond (C)
mineral
Gneiss
Gneiss
metamorphic
Diorite (Salt and Pepper Rock)
Diorite
igneous
Quartz (Rose/Pink variety)
Silicon Dioxide (SiO2)
mineral
River Rock (Gneiss/Schist mix)
Foliated Metamorphic Rock (Gneiss)
metamorphic
Banded Gneiss
Gneiss
metamorphic
Diamond in Kimberlite
Kimberlite host rock with C (Carbon) inclusion
igneous
Gneiss
Gneiss
metamorphic
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Granite
Granite
igneous
Banded Gneiss (with Quartz Vein)
Gneiss (Metamorphic rock of varying mineralogy)
metamorphic
Rock Salt (Halite)
Halite (Sodium Chloride, NaCl)
mineral
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Dyed Quartz / Rose Quartz Imitation
Silicon Dioxide (SiO2) with artificial pigment
mineral
Granite
Granite
Igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Yellow Aventurine (Yellow Quartzite)
Silicon Dioxide (SiO2) with inclusions
metamorphic
Amygdaloidal Basalt
Vesicular-Amygdaloidal Basalt (Mafic Extrusive)
igneous
Calcite on Limestone
Calcium Carbonate (CaCO3) on Sedimentary Rock
mineral
Schist
Mica Schist (primarily Muscovite and Biotite)
metamorphic
Serpentine
Serpentinite (rock) containing serpentine minerals (e.g., Antigorite, Lizardite, Chrysotile)
Metamorphic rock