Quartz Druzy
Silicon Dioxide (SiO2)
Category
Browse mineral (synthetic) specimens identified by the Rock Identifier community.
Quartz Druzy
Silicon Dioxide (SiO2)
Amazonite
K(AlSi3O8)
Amethyst Geode
Amethyst/Purple Quartz (SiO2)
Amethyst
Silicon dioxide (SiO2) with iron impurities
Citrine Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Druzy Quartz (on Chalcedony/Agate base)
Silicon Dioxide (SiO2)
Spessartine Garnet in Quartz/Feldspar Pegmatite
Spessartine (Mn3Al2(SiO4)3) in Quartz (SiO2) and Feldspar
Smoky Quartz in Matrix
Silicon Dioxide (SiO2)
Amazonite
K(AlSi3O8) - Potassium Aluminum Silicate
Tiger's Eye
Pseudomorph of Quartz (SiO2) after Crocidolite
Amazonite
KAlSi3O8 (Potassium Aluminum Silicate)
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
Pink Thulite (Zoisite)
Ca2Al3(SiO4)3(OH) - Manganese-bearing Zoisite
Sunstone
Plagioclase Feldspar (containing (Ca,Na)(Al,Si)4O8 with Hematite or Copper inclusions)
Sunstone
Oligoclase (Plagioclase Feldspar) - (Ca,Na)(Al,Si)4O8 with Hematite or Copper inclusions
Emerald with Matrix (Emerald in Mica Schist)
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Amazonite
Microcline (KAlSi3O8 with lead impurities)
Amethyst (Quartz variety)
Amethyst - SiO2 (Silicon Dioxide with Iron impurities)
Cat's Eye Chrysoberyl
Chrysoberyl (BeAl2O4)
Amazonite
Microcline (KAlSi3O8) with lead impurities
Sunstone
Oligoclase (Plagioclase Feldspar), (Na,Ca)(Si,Al)4O8
Citrine
Silicon Dioxide (SiO2)
Moonstone (Feldspar)
Orthoclase or Oligoclase (KAlSi3O8)
Amazonite
Amazonite (KAlSi3O8)
Amazonite
Microcline (variety of Feldspar), K(AlSi3O8)
Chalcopyrite in Quartz (Gossan/Iron Hat)
CuFeS2 (Chalcopyrite) with SiO2 (Quartz)
Quartz (with inclusions / Sandstone fragment)
Silicon Dioxide (SiO2)
Amethyst
Amethyst (Silicon Dioxide - SiO2 with iron impurities)
Amazonite
Potassium Feldspar (Microcline), K(AlSi3O8)
Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
Quartz Geode
Silicon Dioxide (SiO2)
Sparkling Druzy Quartz on Matrix
Silicon Dioxide (SiO2) with iron oxide inclusions
Amethyst
Amethyst (Silicon Dioxide, SiO2 with Iron impurities)
Amethyst
Silicon dioxide / Quartz (SiO2+Fe4+)
Prehnite
Prehnite (Ca2Al(AlSi3O10)(OH)2)
Greenschist
Greenschist facies rock
Sandstone
Arenite (SiO2 primarily)
Granite
Granite
Human Skin (Epidermis/Dermis)
Integumentary tissue (High content of hydroxyapatite in bones, though the surface is biological)
Peacock Ore (Chalcopyrite/Bornite)
Bornite (Cu5FeS4) or iridescent treated Chalcopyrite (CuFeS2)