Peach Moonstone
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Category
Mineralogical Specimen
Browse mineralogical specimen specimens identified by the Rock Identifier community.
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Jasper (specifically Yellow or Bumblebee-like Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Moss Agate
Chalcedony (Silicon Dioxide - SiO2) with inclusions
Mineral
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Chrysocolla on Matrix
Hydrated copper phyllosilicate mineral (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions of Iron Oxide)
mineral
Amazonite
Potassium Feldspar (KAlSi3O8) with lead impurities
mineral
Red Aventurine (Strawberry Quartz)
Silicon Dioxide (SiO2) with inclusions of Hematite or Goethite
Mineral
Carnelian (Red Chalcedony)
SiO2 (Silicon Dioxide with Iron Oxide impurities)
mineral
Chrysocolla
Hydrated copper silicates (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Carnelian Agate (with Quartz/Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Rose Quartz
Silicon dioxide (SiO2) with trace titanium, manganese, or iron
mineral
Rose Quartz
Silicon dioxide (SiO2)
mineral
Carnelian
Carnelian (Cryptocrystalline Quartz, SiO2)
mineral
Tangerine Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite coatings
mineral
Turquoise
Hydrated phosphate of copper and aluminum, CuAl6(PO4)4(OH)8·4H2O
mineral
Jasper with Quartz inclusions
Silicon Dioxide (SiO2)
sedimentary
Labradorite
Labradorite ((Ca,Na)(Al,Si)4O8)
mineral
Jasper (Imperial Jasper style)
Silicon Dioxide (SiO2) with impurities
sedimentary
Heat-Treated Citrine (Amethyst)
Silicon Dioxide (SiO2) with iron impurities
mineral
Banded Calcite (often sold as 'Mexican Onyx')
Calcite (Calcium Carbonate - CaCO3)
sedimentary
Hematite
Hematite (Fe2O3)
mineral
Purple Agate (Dyed Chalcedony)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
mineral
Basalt River Pebble
Extrusive mafic igneous rock; primarily composed of Plagioclase Feldspar and Pyroxene
Igneous
Basalt (Road Aggregate)
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Quartzite
Quartzite (SiO2)
metamorphic
Basalt River Stone
Aphanitic Mafic Igneous Rock
igneous
Quartz Geode (Druzy)
Crystalline Silicon Dioxide (SiO2)
mineral
Granitic Gneiss
Gneiss (High-grade regional metamorphic rock)
metamorphic
Vanadinite
Vanadinite (Pb5(VO4)3Cl)
mineral
Quartz (with inclusions / Sandstone fragment)
Silicon Dioxide (SiO2)
mineral
Limestone with Lichen
Sedimentary Calcium Carbonate (CaCO3)
sedimentary
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Basalt
Africite (Mafic Igneous Rock)
igneous
Quartzite
Quartzite (primarily SiO2)
metamorphic
Yellow Quartzite (River Stone)
Quartzite (primarily SiO2)
metamorphic
Dyed Agate
SiO2 (Silicon Dioxide)
mineral
Red Quartzite / Ferruginous Sandstone
Quartzite (SiO2 with iron oxide impurities)
metamorphic
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Basalt
Basalt (Mafic volcanic rock)
igneous
Labradorite (Polished Crystal Point)
Labradorite (a calcium-enriched feldspar mineral), (Ca, Na)(Al, Si)4O8
mineral