Orthoclase Feldspar (Sunstone variety)
KAlSi3O8 (Potassium Aluminum Silicate)
Category
Browse metamorphic (localized) or sedimentary specimens identified by the Rock Identifier community.
Orthoclase Feldspar (Sunstone variety)
KAlSi3O8 (Potassium Aluminum Silicate)
Emerald with Matrix (Emerald in Mica Schist)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Quartz (specifically Milky Quartz or Quartzite)
Silicon Dioxide (SiO2)
Rhodonite
Rhodonite (Mn, Fe, Mg, Ca)SiO3
Aventurine
Silicon Dioxide (SiO2) with inclusions
Banded Agate
Cryptocrystalline Quartz (SiO2)
Sodalite
Sodalite - Na8(Al6Si6O24)Cl2
Moonstone (Feldspar)
Orthoclase or Oligoclase (KAlSi3O8)
Citrine
Silicon dioxide (SiO2)
Gold in Quartz Matrix
Native Gold (Au) with Quartz (SiO2) and Slate/Shale
Sapphire
Corundum (Al2O3)
Almandine Garnet in Matrix
Almandine, Fe3Al2(SiO4)3
Quartz / Quartzite
Silicon Dioxide (SiO2)
Yellow Aventurine
Quartz (Silicon Dioxide - SiO2) with inclusions of Mica
Smoky Quartz
Silicon Dioxide (SiO2)
Yellow Aventurine (Yellow Quartzite)
Silicon Dioxide (SiO2) with inclusions
Jadeite Jade
NaAlSi2O6 (Sodium Aluminum Silicate)
Blue Sapphire
Corundum (Al2O3 with trace Titanium and Iron)
Agate
Agate (Silicon Dioxide, SiO2)
Ferruginous Quartzite (Red Chert/Jasper-like)
Metamorphosed Quartzite with Hematite inclusions (SiO2 + Fe2O3)
Ruby
Corundum (Al2O3 with Chromium traces)
Ruby and Diamond Heart Pendant
Corundum (Al2O3) and Diamond (C)
Smoky Quartz
SiO2 (Silicon Dioxide)
Banded Agate
Chalcedony (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Smoky Quartz (Faceted Beads)
Silicon Dioxide (SiO2)
Quartz Vein in Host Rock (Gneiss/Schist)
Silicon Dioxide (SiO2) within a metamorphic matrix
Ruby
Corundum (Al2O3 with Chromium traces)
Sodalite
Na8(Al6Si6O24)Cl2 (Sodium Aluminum Silicate Chloride)
Bornite
Bornite (Cu5FeS4)
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
Muscovite (White Mica)
Muscovite - Potassium aluminum silicate: KAl2(AlSi3O10)(F,OH)2
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
Quartz
Quartz (Silicon Dioxide, SiO2)
Green Aventurine
Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)
Almandine Garnet
Almandine, Fe3Al2(SiO4)3
Yellow Quartz Pebble
SiO2 (Silicon Dioxide) with Iron Impurities
Amazonite
KAlSi3O8 (Potassium aluminum silicate - blue-green variety of Microcline)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite
Quartzite
Metamorphic Rock (Mainly SiO2)
Quartzite Pebble
Metamorphic Quartzite (SiO2)
Quartz (Crystal Fragment)
Quartz / Silicon Dioxide (SiO2)