Red Jasper
Silicon dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Category
Browse antropogenic (man made glass byproduct) specimens identified by the Rock Identifier community.
Red Jasper
Silicon dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper
Jasper (Silicon Dioxide, SiO2)
Rose Quartz
Crystalline Silicon Dioxide with trace Titanium/Manganese/Iron (SiO2)
Granite
Phaneritic Plutonic Rock (High Silica content)
Fluorite
Fluorite (Calcium Fluoride, CaF2)
Conglomerate with Fossilized Shark Teeth
Clastic sedimentary rock (Conglomerate) containing Elasmobranchii remains
Granite
Granite (Phaneritic Quartz-Feldspar Felsic Rock)
Milk Quartz (or Milky Quartz)
Silicon Dioxide (SiO2)
Pumice
Pumice (a highly vesicular volcanic glass)
Quartzite
Quartzite (SiO2)
Quartzite
Quartzite (SiO2)
Quartzite (River Pebble)
Metamorphosed Quartz Sandstone (SiO2)
White Quartz Pebble
Silicon Dioxide (SiO2)
Pyrite
Iron Disulfide (FeS2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Quartz with Hematite Staining
Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3) inclusions
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Pyrite
Iron Sulfide (FeS2)
Pyrite
Iron Disulfide (FeS2)
Quartz (specifically Citrine or Iron-stained Quartz)
Silicon Dioxide (SiO2)
Amethyst
SiO2 (Silicon Dioxide)
Jasper (likely Ocean Jasper or Variegated Jasper)
Silicon Dioxide (SiO2) with impurities
Fluorite
Calcium Fluoride (CaF2)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Quartz (Milky/Bull Quartz)
Silicon Dioxide (SiO2)
Moss Agate
Chalcedony (Silicon Dioxide with inclusions) - SiO2
Chert (and its variety Flint)
Silicon Dioxide (SiO2) - Microcrystalline or cryptocrystalline Quartz
Chert (often called Flint when dark)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Jasper (specifically Picture Jasper or Landscape Jasper)
Silicon Dioxide (SiO2) - Opaque variety of Chalcedony/Quartz
Rough Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
Quartz (Milky or Iron-Stained)
Silicon Dioxide (SiO2)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)
Quartzite River Rock with Dendrites
Metamorphosed Quartz-rich Sandstone with Manganese Oxide (MnO2) inclusions
Obsidian
Volcanic Glass (predominantly SiO2, approximately 70% or more)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Jade (specifically Nephrite or Jadeite beads)
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)