Quartz with Mica Schist (Pegmatite Specimen)
SiO2 (Silicon Dioxide) and Phyllosilicates (Biotite/Muscovite)
Category
Browse metamorphic rock (for both nephrite and jadeite) specimens identified by the Rock Identifier community.
Quartz with Mica Schist (Pegmatite Specimen)
SiO2 (Silicon Dioxide) and Phyllosilicates (Biotite/Muscovite)
Quartz (specifically Clear Quartz or Rock Crystal)
Silicon Dioxide (SiO2)
Clear Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Quartzite
Quartzite (composed primarily of SiO2)
Aventurine
Quartzite with inclusions (SiO2 containing Fuchsite chrome mica)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (SiO2)
Ruby in Fuchsite (often confused with Ruby in Zoisite)
Corundum (Al2O3) in Chromium-rich Muscovite (KAl2(AlSi3O10)(OH)2)
Quartzite with Iron Mineral Banding
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3) staining
Muscovite Mica
Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2
Quartz
Quartz (SiO2)
Quartzite
Quartzite (primarily SiO2)
Schist with Schorl (Black Tourmaline)
NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)
Quartzite
Quartzite (SiO2)
Quartzite
Metamorphosed Quartz Sandstone (SiO2)
Quartzite
Quartzite (primarily SiO2)
Quartzite
Quartzite (primarily SiO2)
Blue Apatite
Apatite group (Ca5(PO4)3(F,Cl,OH))
Smoky Quartz
Silicon Dioxide (SiO2)
Blue Sapphire (Tumbled/Polished)
Corundum (Al2O3)
Lapis Lazuli
Lapis Lazuli (A metamorphic rock primarily composed of Lazurite: (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)
Yellow Agate
Silicon Dioxide (SiO2)
Smoky Quartz Cluster
Smoky Quartz (Silicon Dioxide - SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Tiger's Eye (likely Hawk's Eye variant)
Pseudomorph of Quartz after Crocidolite (SiO2)
Smoky Quartz (with possible Garnet inclusions)
Silicon Dioxide (SiO2)
Serpentine (Serpentinite)
Serpentinite (complex silicate group including lizardite, chrysotile, and antigorite)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Milky Quartz
Crystalline Silicon Dioxide (SiO2)
Eclogite
Eclogite (Omphacite-Garnet rock)
Banded Gneiss
Gneiss (quartz-feldspar-biotite metamorphic rock)
Greenstone / Serpentinite
Serpentinite (composed largely of Serpentine group minerals, Mg3Si2O5(OH)4)
Quartz Mica Schist
Mica-Quartz Schist (Chemical: SiO2 + KAl2(AlSi3O10)(OH)2)
Unakite
Unakite (altered granitic rock)
Serpentinite
Serpentine rock (Mg,Fe,Ni,Al,Zn,Mn)3(Si,Al,Fe)2O5(OH)4
Quartzite
Quartzite (SiO2-dominant rock)
Quartz Pebble
Silicon Dioxide (SiO2)
Unakite
Epidotized Granite