Smoky Quartz
Silicon Dioxide (SiO2)
Category
Browse metamorphic (pseudo igneous) specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
White Quartz Pebble
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Quartz (River Pebble)
Silicon Dioxide (SiO2)
Pink Feldspar (Orthoclase)
Orthoclase Feldspar (KAlSi3O8)
Milky Quartz
Silicon Dioxide (SiO2)
Banded Agate (Yellow Agate)
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Corundum (Ruby/Sapphire crystal)
Al2O3 (Aluminum Oxide)
Quartz with Chalcopyrite and Pyrite
Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)
Rainbow Moonstone with Black Tourmaline
White Labradorite with Schorl (Na,Ca)(Al,Si)4O8
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Hematite
Iron(III) oxide (Fe2O3)
Quartz (Grain/Fragment)
Silicon Dioxide (SiO2)
Rough Ruby
Corundum (Al2O3 with Chromium impurities)
Citrine
Silicon Dioxide (SiO2) with iron impurities
Quartz (Milky/Common)
Quartz (Silicon Dioxide, SiO2)
Quartz (specifically Milky or Clear Quartz)
Silicon Dioxide (SiO2)
Sunstone
Aventurine Feldspar ((Ca,Na)(Al,Si)4O8)
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Sulfide (FeS2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Orange Quartz
Crystalline Silicon Dioxide (SiO2) with iron oxide inclusions
Clear/White Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Muscovite Mica (Golden/Yellow variety)
KAl2(AlSi3O10)(F,OH)2
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
Magnetite / Iron Ore
Magnetite (Fe3O4)
Aventurine Quartz
Silicon Dioxide (SiO2) with inclusions (typically Fuchsite/Mica)
Almandine Garnet
Almandine [Fe3Al2(SiO4)3]
Red Garnet
Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)
Epidote
Epidote (Ca2(Al,Fe)3(SiO4)3(OH))
Gneiss
Gneiss (High-grade metamorphic rock)
Nuummite
Nuummite (mixture of Anthophyllite and Gedrite)
Gneiss
Gneiss