Chert / Flint
Microcrystalline Quartz (SiO2)
sedimentary
Category
Antropogenic (Man Made Glass Byproduct)
Browse antropogenic (man made glass byproduct) specimens identified by the Rock Identifier community.
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Quartz
Silicon Dioxide (SiO2)
mineral
White Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite
Quartzite (composed primarily of SiO2)
metamorphic
Black Obsidian
Volcanic Glass (SiO2 + impurities)
igneous
Colorless faceted gemstone, likely cubic zirconia
Cubic zirconia (synthetic ZrO₂), possibly glass or quartz
gemstone
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Olivine-rich Basalt with Peridotite Xenoliths
Porphyritic Basalt containing Dunite/Peridotite (Mg,Fe)2SiO4
igneous
Blue Topaz
Al2SiO4(F,OH)2
mineral
Chert (Flint Nodules)
Chert (Silicon Dioxide, SiO2)
sedimentary
Fluorite on Matrix
Calcium Fluoride (CaF2)
mineral
Sandstone (with potential trace fossils)
Clastic sedimentary rock (primarily SiO2)
sedimentary
Quartz (Milky/Common)
Silicon Dioxide (SiO2)
mineral
Chert / Jasper
Microcrystalline Quartz (SiO2)
sedimentary
Pyrite
Iron Sulfide (FeS2)
mineral
Quartzite
Metamorphic Quartz Sandstone
metamorphic
Quartz Pebble (with Hematite Inclusions)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Pink Halite (Himalayan Salt)
Halite (Sodium Chloride, NaCl)
sedimentary
Basalt with Peridotite Xenolith
Mafic Igneous Rock with Peridotite Inclusion (Olivine-rich)
igneous
Chert (Basanite / Jasperoid)
Microcrystalline Quartz (SiO2)
sedimentary
Quartzite
Quartzite (chiefly SiO2)
metamorphic
Quartzite
Quartzite (composed primarily of Quartz, SiO2)
metamorphic
Diamond
Natural Diamond (Carbon, C)
gemstone
Agate (Bead Form)
Agate (Cryptocrystalline Quartz, SiO2)
mineral
Pink Quartzite
Quartzite (primarily SiO2)
metamorphic
Yellow or Honey Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartzite
Quartzite (SiO2)
metamorphic
Quartz (Clear or Smoky)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz / Common Opal
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Quartzite River Rock
Quartzite (SiO2)
metamorphic
Quartzite
Quartzite (primarily SiO2)
metamorphic
Quartz Drusy on Matrix
Silicon Dioxide (SiO2)
mineral