Sea Glass
Man-made vitreous material
Category
Browse mineral simulant (synthetic glass) specimens identified by the Rock Identifier community.
Sea Glass
Man-made vitreous material
Sea Glass
Amorphous silicon dioxide (SiO2) - Man-made glass tumbled by nature
Sea Glass
Amorphous silicon dioxide (Man-made glass weathered by nature)
Quartz pebble
Silicon dioxide (SiO2)
Black Obsidian
Obsidian (Volcanic Glass)
Black Obsidian
Volcanic Glass (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Quartz Vein in Host Rock
Silicon Dioxide (SiO2)
Quartz (Raw Crystal)
Silicon Dioxide (SiO2)
Quartz on Matrix
Silicon Dioxide (SiO2)
Quartz (Clear/White)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Clear Quartz
SiO2 (Silicon Dioxide)
Educational Geologic Collection
Mixed Mineral and Rock Collection (Various compositions)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz (Pink / Ferruginous)
Silicon Dioxide (SiO2)
Yellow Quartz
Silicon Dioxide (SiO2)
Quartz (Citrine or Iron-Stained)
Silicon Dioxide (SiO2)
Chalcedony (Common Opal or Agate variant)
Silicon Dioxide (SiO₂)
Quartz (Milky/Smoky variety)
Silicon Dioxide (SiO2)
Blue Apatite
Chlorapatite / Fluorapatite (Ca5(PO4)3(F,Cl,OH))
Milky Quartz
Silicon Dioxide (SiO2)
Obsidian
Volcanic Glass (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
K-Feldspar (Potassium Feldspar)
Potassium Feldspar (KAlSi3O8)
Tumbled pink quartz (probable rose quartz)
Quartz, silicon dioxide (SiO₂), commonly colored by trace elements and microscopic inclusions
White quartz pebble
Quartz (SiO₂), likely milky quartz
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Tumbled smoky quartz with iron-stained inclusions
Quartz (SiO₂), likely smoky quartz variety
Quartz (specifically Milky or Clear Quartz)
Silicon Dioxide (SiO2)
Smoky Quartz
Smoky Quartz (Silicon Dioxide - SiO2)
Clear Quartz (Tumbled)
Silicon Dioxide (SiO2)
Obsidian
Obsidian (Volcanic Glass)
Milky Quartz with Mineral Inclusions
Silicon Dioxide (SiO2) with miscellaneous inclusions
Quartz (Milky Quartz / Greenish Quartz)
SiO2 (Silicon Dioxide)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Milky/Smoky mix)
Silicon Dioxide (SiO2)
Sandstone (likely Quartzose)
Arenite (SiO2 principal mineral)