Green Aventurine
Aventurine Quartz (SiO2 with inclusions)
Category
Browse mineral (metamorphic pseudomorph) specimens identified by the Rock Identifier community.
Green Aventurine
Aventurine Quartz (SiO2 with inclusions)
White Moonstone (Scolicite or White Feldspar var. )
Lattice-structure Silicate (KAlSi3O8)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Smoky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky or Yellow variety)
Silicon Dioxide (SiO2)
Orange Calcite
Calcium Carbonate (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
Amazonite
Microcline (KAlSi3O8) with lead impurities
Lazulite
Magnesium Aluminum Phosphate Hydroxide (MgAl2(PO4)2(OH)2)
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
Smoky Quartz
Silicon Dioxide (SiO2)
Potassium Feldspar
Orthoclase (KAlSi3O8)
Slate
Slate (Metamorphosed Shale or Mudstone)
Gneiss (specifically Biotite Gneiss)
Gneiss (high-grade metamorphic rock primarily composed of Silicates)
Greenstone
Metabasalt (Greenstone)
Gneiss (specifically Banded Gneiss)
Gneiss
Slate with Quartz Vein
Foliated Metamorphic Rock (Mainly Quartz, Muscovite, Chlorite)
Schist
Metamorphic rock (Schist)
Gneiss (Cobble)
Gneiss
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Quartz Pebble
Silicon Dioxide (SiO2)
Orthoclase Feldspar
Potassium Aluminum Silicate (KAlSi3O8)
Potassium Feldspar (Orthoclase)
KAlSi3O8
Mica Specimen (Schist / Muscovite)
Muscovite / Biotite Mica (KAl2(AlSi3O10)(F,OH)2)
Green Quartz (Aventurine or Green Quartzite)
SiO2 (Silicon Dioxide) with mica inclusions
Auriferous Quartz with Pyrite
Gold-bearing Quartz (SiO2 + FeS2 + Au)
Agate
Silicon dioxide (Chalcedony), SiO2
Aquamarine
Beryl (Be3Al2(SiO3)6)
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
Quartz (Quartzite or Milky Quartz)
Silicon Dioxide (SiO2)
Amazonite
K(AlSi3O8)
Mica Schist
Mica Schist (predominantly Muscovite/Biotite Schist)
Green Quartz (Aventurine)
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Tumbled epidote-bearing rock (likely epidote–quartz–feldspar aggregate)
Epidote-rich metamorphic rock; minerals likely epidote (Ca₂(Al,Fe)₃Si₃O₁₂(OH), quartz, feldspar, and dark amphibole/biotite)
K-Feldspar (Potassium Feldspar)
Potassium Feldspar (KAlSi3O8)
Gneiss
Gneissic Metamorphic Rock
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Clear Quartz (or Rock Crystal)
Quartz (SiO₂)