Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
Category
Browse mineral (gemstone variety of beryl) specimens identified by the Rock Identifier community.
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
Rhodochrosite
Rhodochrosite, Manganese Carbonate (MnCO3)
Garnet (Almandine)
Almandine (Fe3Al2(SiO4)3)
Milky Quartz
Silicon Dioxide (SiO2)
White Quartz Egg
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Moonstone (Rainbow Moonstone)
Labradorite (White Labradorite) - (Na,Ca)(Al,Si)4O8
Pegmatitic quartz–feldspar rock with dark mica
Granitic pegmatite; quartz (SiO₂), feldspar, and biotite mica
Potassium Feldspar (Orthoclase)
KAlSi3O8 (Potassium Aluminum Silicate)
Yellow Jasper
Tectosilicates (SiO2) with Goethite/Iron oxide inclusions
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Yellow Agate
Silicon Dioxide (SiO2)
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
Peach Moonstone
Orthoclase (Potassium Aluminum Silicate, KAlSi3O8)
Granitic Pegmatite
Phaneritic Granite with Potassium Feldspar (KAlSi3O8), Quartz (SiO2), and Plagioclase
Milky Quartz
Silicon Dioxide (SiO2)
Rough Quartz (likely Rose or Smoky variant)
Silicon Dioxide (SiO2)
Heated Citrine (Heat-Treated Amethyst)
Silicon Dioxide (SiO2), quartz variety
Carnelian / Agate
Silicon Dioxide (SiO2) - Chalcedony variety
Quartz
Silicon Dioxide (SiO2)
Citrine Quartz
Silicon dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Carnelian (Orange Agate)
Carnelian (variety of Chalcedony, SiO2)
Feldspar (likely Amazonite or Plagioclase)
Potassium Aluminum Silicate (KAlSi3O8) or Sodium/Calcium Aluminum Silicate
Red Jasper
Jasper (Silica with Iron Oxide inclusions), SiO2
Lake Superior Agate
Quartz (Variety: Agate, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Banded Agate
Chalcedony (SiO2) with impurities
Clear Quartz
Silicon Dioxide (SiO2)
Amethyst
Amethyst (variety of Quartz, SiO2)
Pegmatite (Granitic Pegmatite with Quartz and Feldspar)
Intrusive Igneous Rock (Granitic Pegmatite)
Milky Quartz with Mineral Inclusions
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Raw and Water-worn)
Silicon Dioxide (SiO2)
Rough Corundum (Sapphire/Ruby mixture)
Corundum (Aluminum Oxide, Al2O3)
Amazonite
Microcline (KAlSi3O8) with Trace Elements
Jadeite
NaAlSi2O6 (Sodium Aluminum Silicate)
Carnelian
Carnelian (Silicon Dioxide - SiO2)
Labradorite
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
Quartz (Milky/Gray variety)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)