Cubic Zirconia
Zirconium Dioxide (ZrO2)
mineral
Category
Man Made Glass
Browse man made glass specimens identified by the Rock Identifier community.
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Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Fluorite (Green)
Calcium Fluoride (CaF2)
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg,Fe)2SiO4
mineral
Olivine (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4
mineral
Yellow Fluorite
Calcium fluoride (CaF2)
mineral
Tumbled Rose Quartz with Matrix
Rose Quartz - SiO2 (Silicon Dioxide)
mineral
Diamond (or Lab-Grown Cubic Zirconia)
Carbon (C)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Red Coral
Corallium rubrum
mineral
Amethyst
Silicon dioxide (SiO2) with iron impurities
mineral
Scoria
Vesicular Basalt / Scoria
igneous
Red Quartzite
Quartzite (SiO2)
metamorphic
Rose Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Rose Quartz
Silicon dioxide (SiO2)
mineral
Amethyst
SiO2 (Silicon Dioxide)
mineral
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Fluorite Tower
Calcium Fluoride (CaF2)
mineral
Quartz Geode
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Green Fluorite (Botryoidal/Massive)
Calcium Fluoride (CaF2)
mineral
Quartz (Pink/Orange Variety)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Chalcedony (likely dyed Agate)
Silicon Dioxide (SiO₂)
mineral
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Basalt (Glassy)
Basalt (Aphanitic-Glassy texture)
igneous
Pyrite in Matrix (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Bull Quartz with Mica and Host Rock
Massive Quartz (SiO2) with Muscovite/Chlorite inclusions
igneous
Quartzite Cobble
Quartzite (principally SiO2)
metamorphic
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with inclusions
Silicon Dioxide (SiO2)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Sandstone (Micaceous)
Clastic Sedimentary Rock (primarily SiO2 with Mica)
sedimentary
Quartzite Pebble
Metamorphic Quartz (SiO2)
metamorphic
Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral