Quartzite
Quartzite (primarily SiO2)
metamorphic
Category
Man Made Glass
Browse man made glass specimens identified by the Rock Identifier community.
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Quartzite
Quartzite (SiO2)
metamorphic
Obsidian
Volcanic Glass (SiO2 + impurities)
igneous
Olivine (Peridot)
Olivine Group (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Peridot
Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Fluorite on Matrix
Calcium Fluoride (CaF2)
mineral
Scoria (Red Lava Rock)
Scoria
igneous
Purple Fluorite Octahedron
Fluorite (Calcium Fluoride, CaF2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
mineral
Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
mineral
Rose Quartz
Silicon Dioxide (SiO2) with traces of Titanium, Iron, or Manganese
mineral
Pyrite (Fool's Gold)
Iron Disulfide (FeS2)
mineral
Jasper
Silicon dioxide (SiO2)
sedimentary
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Rough Diamond / Clear Quartz
C (Carbon) or SiO2 (Silicon Dioxide)
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (SiO2) with iron impurities
Mineral
Jasper with Dendritic Inclusions
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Citrine
Silicon Dioxide (SiO2)
mineral
Chert (Commonly called Jasper or Flint)
Chert (SiO2)
sedimentary
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Cobalt Blue Sea Glass
Amorphous Silica Glass (SiO2 + CoO)
mineraloid / anthropogenic material
Colorless Gemstone (possibly Diamond or Cubic Zirconia)
C (Diamond) or ZrO2 (Cubic Zirconia)
gemstone
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Point
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Mineral
Citrine (Heat-treated)
Silicon Dioxide (SiO2)
mineral
Quartz Geode
Crystalline Silicon Dioxide (SiO2) within a geode structure
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Druzy)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Common Quartz)
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Green Fluorite
Calcium Fluoride (CaF2)
mineral
Quartz (Milky/Crystalline)
Silicon Dioxide (SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Pumice
Pumice (a highly vesicular extrusive igneous rock, primarily amorphous silica)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic