Flint
Microcrystalline Quartz (SiO2)
sedimentary
Category
Mineral (Specifically A Variety Of Quartz)
Browse mineral (specifically a variety of quartz) specimens identified by the Rock Identifier community.
Learn about Mineral (Specifically A Variety Of Quartz) in the encyclopedia
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Jasper Conglomerate (Puddingstone)
Siliceous Conglomerate (Quartz and Jasper clasts in a fine-grained matrix)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Green Apophyllite
Fluorapophyllite-(K), KCa4(Si8O20)(F,OH)·8H2O
mineral
Nephrite Jade
Nephrite
Mineral/Rock
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Rainbow Moonstone
White Labradorite (formula: (Na,Ca)(Al,Si)4O8)
mineral
Rough Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Sunstone
Andesine-Labradorite Feldspar ((Ca,Na)(Al,Si)4O8)
mineral
Moonstone (Grey)
Feldspar (variety Orthoclase/Adularia) with the formula (K,Na)AlSi3O8
mineral
Chalcedony (Agate/Carnelian variant)
Silicon Dioxide (SiO2)
mineral
Black Tourmaline (Schorl)
Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Blue Lace Agate
Silicon dioxide (SiO2) - Chalcedony variety
mineral
Amazonite
Amazonite (KAlSi3O8, a variety of Microcline)
mineral
Banded Agate
Agate (chalcedony variety of Silicon Dioxide, SiO2)
mineral
Yellow Calcite
Calcium Carbonate (CaCO3)
mineral
Selenite Gypsum
Hydrous calcium sulfate (CaSO4·2H2O)
mineral
Green Jasper with Agate Banding
Silicon Dioxide (SiO2) with impurities of ferrous silicate or chlorite
sedimentary (chemical/biological origin)
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Tourmalinated Quartz
Silicon dioxide (SiO2) with inclusions of Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH)
mineral
Chert (Flint)
Microcrystalline quartz (SiO2)
sedimentary
Carnelian
Carnelian (Silicon Dioxide, SiO2)
mineral
Jasper (specifically Picture Jasper or Landscape Jasper)
Silicon Dioxide (SiO2) - Opaque variety of Chalcedony/Quartz
sedimentary
Moonstone (specifically Rainbow Moonstone / White Labradorite)
White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Citrine (tumbled)
Silicon dioxide, SiO2
mineral
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
igneous
Banded Agate (specifically Lake Superior Agate style)
Silicon Dioxide (SiO2) - Chalcedony variety
mineral
Moss Agate
Silicon Dioxide (SiO2) with inclusions
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Fluorite (specifically Blue John or Banded Fluorite)
Calcium Fluoride (CaF2)
mineral
Chert (Agatized/Chalcedony variety)
Microcrystalline Quartz (SiO2)
sedimentary
Rough Garnet in Matrix
Almandine Garnet (Fe3Al2Si3O12)
mineral
Green Calcite
Calcium Carbonate (CaCO3)
mineral
Hematoid Quartz
Ferruginous Quartz (SiO2 with Fe2O3 inclusions)
mineral
Agate (specifically Waterline or Onyx-type Agate)
Silicon Dioxide (SiO2) - variety Chalcedony
mineral
Chert (specifically Yellow Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Moonstone (Feldspar variety)
Orthoclase Feldspar (KAlSi3O8)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Blue chalcedony crystal pendant
Chalcedony, microcrystalline quartz (SiO₂), likely blue chalcedony or dyed quartz
gemstone
Green Aventurine
Silicon Dioxide (Quartz variety) with Fuchsite inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
metamorphic
Carnelian (Orange Chalcedony)
Silicon Dioxide (SiO2)
mineral