Milky Quartz
Silicon Dioxide (SiO2)
Category
Browse mineral (man made glass, not natural) specimens identified by the Rock Identifier community.
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Snowflake Obsidian
Volcanic glass containing Cristobalite (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace Titanium, Manganese, or Iron
Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide inclusions
Gold Nugget
Native Gold (Au)
Pearl
Calcium Carbonate (CaCO3) in the form of orthorhombic Aragonite and Conchiolin
Arsenopyrite in Quartz Matrix
Arsenopyrite (FeAsS) with Quartz (SiO2)
Diamond
Carbon (C)
Snowflake Obsidian
Hydrated Volcanic Glass (primarily SiO2) with Cristobalite inclusions
Turquoise
Hydrous phosphate of copper and aluminium (CuAl6(PO4)4(OH)8·4H2O)
Clear Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Obsidian
Obsidian (Volcanic Glass)
Obsidian
Obsidian (Volcanic Glass)
Sandstone (with possibly iron oxides and other minerals)
Sandstone
Sodalite
Sodalite (Na4Al3Si3O12Cl)
Quartz (Drusy/Crystalline)
Silicon Dioxide (SiO2)
Fluorite (likely Green Fluorite variant)
Calcium Fluoride (CaF2)
Fluorite
Calcium Fluoride (CaF2)
Yellow Aventurine
Quartz (Silicon Dioxide) with Mica inclusions (SiO2)
Yellow Quartz (Citrine or Quartzite Pebble)
Silicon Dioxide (SiO2)
Turquoise
CuAl6(PO4)4(OH)8·4H2O (Hydrous Phosphate of Copper and Aluminum)
Gold Nugget
Native Gold (Au)
Scoria (Red Lava Rock)
Scoria (Vesicular Basalt/Andesite)
Black Onyx
Silicon dioxide (SiO2) with parallel banded structure
Diamond (Rough)
Diamond (Carbon, C)
Halite
Halite (NaCl)
Green Fluorite
Calcium Fluoride (CaF2)
Quartz
Silicon Dioxide (SiO2)
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide with impurities)
Obsidian
Volcanic Glass (SiO2 rich)
Clear Quartz
SiO2 (Silicon Dioxide)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz with Iron Staining and Matrix
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Clear Quartz/Rock Crystal)
Silicon Dioxide (SiO2)
Amethyst (Chevron Amethyst/Dream Amethyst)
Silicon Dioxide (SiO2) with trace Iron impurities
Milky Quartz
Silicon Dioxide (SiO2)
Muscovite Mica
Muscovite: KAl2(AlSi3O10)(OH)2