Milky Quartz
Silicon Dioxide (SiO2)
mineral
Category
Mineral (Specifically A Mineraloid)
Browse mineral (specifically a mineraloid) specimens identified by the Rock Identifier community.
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Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Sea Glass (specifically Frosted White)
Amorphous Silica (substance: Sodium-calcium silicate glass)
Mineraloid (Anthropogenic/Man-made rock)
Yellow Jasper
Silicon Dioxide (SiO2) with iron hydroxides (goethite)
sedimentary
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Pink Granite
Phaneritic intrusive igneous rock with dominant Alkali Feldspar
igneous
Sandstone (specifically Picture Sandstone or Wonderstone)
Arenite (composed primarily of SiO2)
sedimentary
Granite Pebble
Granite (composed primarily of Quartz, Potassium Feldspar, Plagioclase, and Biotite/Amphibole)
igneous
Amber
Succinite (formula varies, primarily C10H16O)
Mineraloid (Organic)
Sunstone
Plagioclase Feldspar (Na,Ca)(Al,Si)4O8
gemstone
Sandstone
Arenite (specifically sublithic or quartz arenite)
sedimentary
Chlorastrolite (Isle Royale Greenstone)
Chlorastrolite (Pumpellyite-(Mg,Al)), formula: Ca2(Mg,Fe)Al2(SiO4)(Si2O7)(OH)2∙H2O
mineral
Yellow Agate
Agate (Varietal form of Chalcedony/Quartz, SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
mineral
Yellow Chalcedony (Agate)
Silicon Dioxide (SiO2)
mineral
Emerald in Matrix (Quartz/Schist)
Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities
mineral
Oco Geode
Silicon Dioxide (SiO2) with various inclusions
mineral
Ruby
Corundum (Al2O3 with Chromium traces)
mineral
Pink Granite (with Potassic Feldspar and Quartz)
Felsic Intrusive Igneous Rock (Granite)
igneous
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Blue Goldstone
Aventurine Glass (Silicon Dioxide with metal inclusions)
man-made glass mineral simulant
Ferruginous Quartz (Iron-stained Quartz)
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral
Jasper
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Agate (Grey Agate Slice)
Microcrystalline Quartz (SiO2)
mineral
Rose Quartz
Quartz (SiO₂), specifically a variety of Quartz
Mineral
Moonstone
Orthoclase Feldspar (specifically showing adularescence)
Mineral
Fancy Jasper
Jasper (Cryptocrystalline Quartz, SiO2)
sedimentary
Emerald in Matrix
Beryllium Aluminum Silicate (Be3Al2(SiO3)6) with Chromium/Vanadium
gemstone
Granite Pegmatite with Tourmaline and Muscovite
Pegmatite (Feldspar: KAlSi3O8, Quartz: SiO2, Schorl: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH))
igneous
Rose Quartz
Quartz (SiO₂), specifically a variety of Quartz
Mineral
Chert
Chert (Microcrystalline Quartz, SiO2)
sedimentary
Green Aventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite)
mineral
Septarian Nodule (Yellow Jasper variety)
Septarian Nodule (comprising Calcite, Aragonite, and Limestone/Bentonite)
sedimentary
Stromatolite
Stromatolite (Cyanobacteria-formed Organo-sedimentary structure)
sedimentary
Jasper (specifically Red Jasper)
Silicon Dioxide with Iron Oxides (SiO2 + Fe2O3)
sedimentary
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Ocean Jasper
Spherulitic Chalcedony (SiO2)
mineral
Schist (specifically Chlorite/Greenschist)
Chlorite Schist
metamorphic
Amazonite
Amazonite (KAlSi3O8, a variety of Microcline)
mineral
Aventurine Quartz
Silicon Dioxide (SiO2) with inclusions (typically Fuchsite/Mica)
metamorphic