Specular Hematite (Specularite)
Hematite (Iron(III) oxide) - Fe2O3
mineral
Category
Mineral, Specifically A Variety Of Quartz
Browse mineral, specifically a variety of quartz specimens identified by the Rock Identifier community.
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Tourmalinated Quartz or Schorl
Silicate mineral, specifically Schorl (NaFe2+3Al6(Si6O18)(BO3)3(OH)4) or dark Tourmaline crystal cluster
mineral
Jasper
Silicon Dioxide (SiO2) with impurities (mostly Iron Oxides)
sedimentary
Citrine
SiO2 (Silicon Dioxide)
mineral
Citrine Quartz (likely heat-treated)
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Epidote with Quartz
Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))
metamorphic
Dalmatian Jasper
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Yellow Jasper
Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Polished carnelian (red-orange chalcedony)
Carnelian, a cryptocrystalline variety of quartz (SiO₂), commonly colored by iron oxides
gemstone
Emerald in Matrix
Beryl (Be3Al2Si6O18)
mineral
Carnelian Agate/Jasper blend
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Citrine
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Jasper (specifically Owyhee or Picture Jasper variety)
Jasper (Silicon Dioxide, SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Tumbled carnelian (red chalcedony)
Carnelian, a microcrystalline variety of quartz (SiO₂)
mineral
Banded Agate (specifically Carnelian Agate color)
Silicon Dioxide (SiO2) - variety of Chalcedony
mineral
Tree Agate (or Moss Agate), faceted into a crystal tower
Dendritic Agate (Silicon Dioxide, SiO2)
Mineral
Chert
Chert (SiO2)
sedimentary
Green Aventurine
Quartz with Fuchsite inclusions (SiO2)
mineral
Banded Agate (specifically Red Agate or Sardonyx variety)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert (specifically Jasper or Flint variety)
Cryptocrystalline Quartz (SiO2)
sedimentary
Carnelian
Carnelian (a variety of Chalcedony) - SiO2
mineral
Pegmatitic Granite
Granite (composed of Quartz, Feldspar, and Mica)
igneous
Lake Superior Agate
Cryptocrystalline Quartz (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Graywacke or Siltstone variety)
Clastic Sedimentary Rock (SiO2 with assorted mineral fragments)
sedimentary
Quartz Geode Fragment
Crystalline Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Carnelian
SiO2 (Silicon Dioxide) - Translucent reddish-brown variety of Chalcedony
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Yellow Jasper
Jasper, a microcrystalline variety of Quartz (SiO2) with iron inclusions
sedimentary
Yellow Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary