Chrysocolla in Chalcedony (Gem Silica)
Hydrated copper phyllosilicate and silicon dioxide (SiO2 with (Cu,Al)2H2Si2O5(OH)4)
Category
Browse mineral, jewelry specimens identified by the Rock Identifier community.
Chrysocolla in Chalcedony (Gem Silica)
Hydrated copper phyllosilicate and silicon dioxide (SiO2 with (Cu,Al)2H2Si2O5(OH)4)
Quartz Geode
Silicon Dioxide (SiO2)
Petrified Wood
Silicified wood (Quartz replacement, SiO2)
Jasper
Silicon dioxide (Microcrystalline quartz, SiO2)
Agate Geode Nodule
Chalcedony / Quartz (SiO2)
Amethyst
Quartz (SiO2)
Tiger's Eye
Silicon Dioxide (Quartz pseudomorph after crocidolite)
Raw Topaz (or Smoky Quartz)
Al2SiO4(F,OH)2 / Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Septarian Nodule (Dragon Stone)
Septarian Concretion (CaCO3 + MgCO3 + Clay)
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
Imperial Topaz
Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)
Quartz (Herkimer Diamond variant)
Silicon Dioxide (SiO2)
Tektite (Indochinite)
Tektite (Terrestrial Impact Glass)
Clear Quartz
Silicon Dioxide (SiO2)
Amethyst (Faceted)
Silicon Dioxide with iron impurities (SiO2)
Amethyst
Amethyst (Silicon Dioxide, SiO2 with Iron impurities)
Citrine Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
SiO2 (Silicon Dioxide)
Prehnite with Epidote
Prehnite (Ca2Al(AlSi3O10)(OH)2) with Epidote inclusions (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
Tiger's Eye
Silicon dioxide (SiO2) with inclusions of Limonite
Amethyst
Silicon Dioxide (SiO2) with Fe3+ impurities
Rose Quartz
Silicon Dioxide (SiO2) with trace Manganese, Titanium, or Iron
Amazonite
Microcline (KAlSi3O8)
Azurite and Malachite
Azurite (Cu3(CO3)2(OH)2) and Malachite (Cu2CO3(OH)2)
Amethyst on Basalt
Silicon dioxide (SiO2) with trace Iron
Smoky Quartz
Silicon Dioxide (SiO2)
Green Moss Agate
Agate (Silicon Dioxide, SiO2) with inclusions
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Azurite and Malachite
Copper Carbonates: Cu3(CO3)2(OH)2 (Azurite) and Cu2CO3(OH)2 (Malachite)
Tanzanite
Blue Zoisite (Ca2Al3(SiO4)3(OH))
Blue Quartz
Quartz (Silicon Dioxide) with inclusions, SiO2
Pink Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Petrified Wood
Silicified Wood (SiO2)
Citrine Quartz
Silicon Dioxide (SiO2)
Rutilated Quartz
Silicon Dioxide (SiO2) with Titanium Dioxide (TiO2) inclusions
Amazonite
Microcline (KAlSi3O8)
Tanzanite (Rough)
Blue Zoisite (Ca2Al3(SiO4)3(OH))
Rough Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
Amazonite
Potassium aluminum silicate (KAlSi3O8)