Crystalline Quartz (Rough)
Quartz (Silicon Dioxide, SiO2)
Category
Browse man made glass specimens identified by the Rock Identifier community.
Crystalline Quartz (Rough)
Quartz (Silicon Dioxide, SiO2)
Green Jasper
Jasper (Silicates, SiO2)
Jasper
Silicon dioxide (SiO2) with iron impurities
Jasper
Silicon dioxide (SiO2)
Jasper Agate
Chalcedony (Silicon Dioxide - SiO2)
Rose Quartz with possible Manganese or Iron inclusions
SiO2 (Silicon Dioxide)
Blue Apatite
Fluorapatite / Chlorapatite [Ca5(PO4)3(F,Cl,OH)]
Milky Quartz with Dendritic Inclusions
Silicon Dioxide (SiO2)
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
Banded Chert
Cryptocrystalline Quartz (SiO2)
Chert (Iron-stained)
Chert (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Smoky Quartz Geode Cluster
Silicon Dioxide (SiO2)
Quartzite
Quartzite (Primary mineral: Quartz, SiO2)
Jasper (Multi-colored) / Sea Glass Slag
Silicon Dioxide (SiO2) with impurities of Iron Oxide
Pink Quartzite
Quartzite (primarily SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Quartz (Riverstone / Cobble)
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Anthracite Coal
Anthracite (Carbon-based solid)
Chert (Flint)
Chert (Cryptocrystalline Quartz, SiO2)
Quartzite
Metamorphosed Quartz Sandstone (primarily SiO2)
Quartz (Common Milky Quartz Pebble)
Silicon Dioxide (SiO2)
Chert (Iron-stained)
Microcrystalline Quartz (SiO2)
Ferruginous Quartz (Stained Quartz)
Silicon Dioxide (SiO2) with secondary Iron Oxide inclusions (Limonite/Hematite)
Quartz / Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Clear Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Milky Quartz (Quartz Vein)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Moss Agate
Chalcedony (Silicon Dioxide, SiO2) with inclusions
Chert (Jasper/Flint variety)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Jasper with Manganese Dendrites
Silicon Dioxide (SiO2) with Oxide Mineral Inclusions
Quartz with Pyrite
Silicon Dioxide (SiO2) with Iron Sulfide (FeS2)
Quartz (Rose/Milky variety)
Silicon Dioxide (SiO2)
Jasper with Quartz inclusion
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Fluorite
Calcium Fluoride (CaF2)
Milk Quartz (Tumbled)
Silicon Dioxide (SiO2)
Lepidolite (in Quartz Matrix)
Lepidolite [K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2]
Quartz Druze
Silicon Dioxide (SiO2)