Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Category
Mineral (Man Made Glass)
Browse mineral (man made glass) specimens identified by the Rock Identifier community.
Amethyst (Quartz)
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Orange Quartz (Citrine Quartz variety)
Silicon Dioxide (SiO2)
mineral
Pyrite (Iron Pyrites)
Iron Sulfide (FeS2)
mineral
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Mahogany Obsidian
Volcanic Glass (Silicate: SiO2 + Fe2O3)
igneous
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Pyrite
Iron Disulfide (FeS2)
mineral
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Smoky/Grey variety)
Silicon Dioxide (SiO2)
mineral
Quartz with Iron Staining
Silicon Dioxide (SiO2) with iron oxide impurities
mineral
Quartz Pebble (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz with Iron Oxide Inclusions
SiO2 with Fe2O3 impurities
Mineral
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
mineral
Yellow Quartz Pebble
SiO2 (Silicon Dioxide)
mineral
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz / Silicon Dioxide (SiO2)
mineral
Milky Quartz with Chlorite/Mica inclusions
Silicon Dioxide (SiO2) with inclusions
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 + various cementing minerals)
sedimentary
Fluorite (Green Fluorite)
Fluorite (Calcium Fluoride, CaF2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Olivine in Basalt (Peridot)
Magnesium Iron Silicate (Mg, Fe)2SiO4 in Vesicular Basalt
igneous
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Green Aventurine (Quartz)
SiO2 (Silicon Dioxide with Fuchsite inclusions)
mineral
Sandstone (Ferruginous)
Arenite (primarily SiO2 with Fe2O3 staining)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary