Quartz (Tumbled)
Silicon Dioxide (SiO2)
Category
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
Quartz (Tumbled)
Silicon Dioxide (SiO2)
Blue glass-like gemstone specimen (likely dyed or synthetic quartz)
Uncertain; possibly blue-dyed quartz or synthetic glass, not confidently identifiable from the image
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Lepidolite
K(Li,Al)3(Si,Al)4O10(F,OH)2
Quartz
Silicon Dioxide (SiO2)
Tumbled quartz-rich stone, likely milky quartz
Quartz (SiO₂), possibly iron-stained milky quartz or quartzite
Quartz (Druzy)
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Clear Quartz
Silicon Dioxide (SiO2)
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)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Obsidian
Obsidian (Volcanic Glass)
Yellow Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon dioxide (SiO2)
Quartz (Milky/Smoky mix)
Silicon Dioxide (SiO2)
Tumbled milky quartz
Quartz (SiO₂), likely massive milky quartz
Clear Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Clear Quartz (Tumbled)
Silicon Dioxide (SiO2)
Obsidian
Volcanic Glass (SiO2)
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Obsidian
Volcanic Glass (SiO2 rich)
Tumbled reddish sandstone pebble
Quartz-rich sandstone, likely ferruginous arkose or quartz arenite
Fulgurite
Fulgurite (Lechatelierite)
Sandstone (Quartzite-rich)
Clastic Sedimentary Rock (primarily SiO2)
Aventurine (Green Quartz)
Silicon dioxide with inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Obsidian with Slate/Tuff
Volcanic glass (SiO2) with associated pyroclastic rock
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with impurities)
Obsidian
Obsidian (Volcanic Glass) SiO2 (70% or more)
K-Feldspar (Potassium Feldspar)
Potassium Feldspar (KAlSi3O8)
Milky Quartz
Silicon Dioxide (SiO2)
Snowflake Obsidian
Volcanic Glass with Cristobalite inclusions