Freshwater Pearl
Aragonite / Biogenic Calcium Carbonate (CaCO3)
mineral
Category
Man Made Glass
Browse man made glass specimens identified by the Rock Identifier community.
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Tumbled Gray Agate
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified wood (primarily Silicon Dioxide, SiO2)
metamorphic
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Fluorite
Calcium Fluoride (CaF2)
mineral
Fluorite (Blue)
Calcium Fluoride (CaF2)
mineral
Smoky Quartz
Crystalline Silicon Dioxide (SiO2)
mineral
Red Sandstone
Arenite (Fe2O3 rich)
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Yellow Quartzite
Quartzite (SiO2)
metamorphic
Quartzite Pebble
Quartzite (SiO2)
metamorphic
Quartzite (River Pebble)
Metamorphic rock consisting primarily of Quartz (SiO2)
metamorphic
Quartzite
Metamorphic rock primarily composed of Quartz (SiO2)
metamorphic
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
White Quartz Sphere
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Silicon dioxide (SiO2)
sedimentary
Quartzite
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (SiO2)
metamorphic
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Fluorite (Rainbow Fluorite)
Calcium Fluoride (CaF2)
mineral
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Fluorite (Rainbow/Purple Fluorite)
Calcium Fluoride (CaF2)
mineral
Rhodonite with Manganese Oxides
Rhodonite (Mn,Fe,Mg,Ca)SiO3
metamorphic
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide with trace inclusions (SiO2)
Mineral
Rose Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Vein on Matrix
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Moss Agate
Chalcedony (SiO2) with inclusions of manganese or iron oxide
mineral
Milky Quartz with Chlorite inclusion
Silicon Dioxide (SiO2) with Chlorite group inclusions
mineral
Agate (Plume/Moss variety)
Cryptocrystalline Quartz (SiO2) with iron/manganese inclusions
mineral
Yellow Quartz (Citrine Quartz or Yellow Chalcedony)
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Jasper
Chalcedony (SiO2)
mineral
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral