Prase or Green Quartz
Silicon Dioxide (SiO2 with actinolite or chlorite inclusions)
Category
Browse mineral (synthetic paper and ink polymorph) specimens identified by the Rock Identifier community.
Prase or Green Quartz
Silicon Dioxide (SiO2 with actinolite or chlorite inclusions)
Epidote
Epidote - Ca2(Al2,Fe3+)3(SiO4)3(OH)
Carnelian
Carnelian (Chalcedony / SiO2)
Yellow Jasper
Silicon Dioxide (SiO2) with Ferric Hydroxide impurities
Celestite (Celestine)
Strontium sulfate (SrSO4)
Smoky Quartz
Smoky Quartz (SiO2)
Turquoise
Hydrated phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Gold-bearing Quartz
Auriferous Quartz (SiO2 with Native Gold inclusion)
Citrine
Quartz (SiO₂)
Gold Nugget
Native Gold (Au)
Dendritic Opal
Dendritic Common Opal (SiO2·nH2O with Manganese oxide inclusions)
Rose Quartz
Silicon dioxide (SiO2)
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxides
Banded Agate (specifically Botswana Agate or Water-line Agate)
Chalcedony (cryptocrystalline variety of Quartz), SiO2
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Banded Agate (specifically Carnelian Agate)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Agate (Carnelian-Blue Agate mix)
Silicon Dioxide (SiO2)
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
Amethyst
Silicon Dioxide with Iron impurities (SiO2)
Yellow Quartz (Citrine or Iron-Stained Quartz)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Carnelian
Silicon dioxide (SiO2) with iron oxide impurities
Yellow Quartz (Citrine-colored Quartz)
Silicon Dioxide (SiO2)
Carnelian Agate
Silicon Dioxide (SiO₂), a variety of Chalcedony
Turquoise in Matrix
Hydrated phosphate of copper and aluminum (CuAl6(PO4)4(OH)8·4H2O)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Hematite
Iron(III) oxide (Fe2O3)
Orange Calcite
Calcium Carbonate (CaCO3)
Amazonite
Potassium Aluminum Silicate (KAlSi3O8)
Gold Nugget
Native Gold (Au)
Carnelian Agate
Silicon Dioxide (SiO2) - Carnelian variety of Chalcedony
Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
Yellow Quartz (Citrine Quartz Pebble)
Silicon Dioxide (SiO2)
Black Onyx
Silicon Dioxide (SiO2) with cryptocrystalline structure
Red Jasper
Silicon Dioxide (SiO2) with Iron inclusions
Pyrite (on Quartz matrix)
Iron Disulfide (FeS2)
Pink Himalayan Salt (Halite)
Halite - NaCl (Sodium Chloride) with trace Iron Oxide and Magnesium
Amethyst (Faceted)
Silicon Dioxide (SiO2) with iron impurities
Banded Agate (Tumbled)
Cryptocrystalline Quartz (SiO2)