Quartz Pebble
Quartz (Silicon Dioxide - SiO2)
mineral
Category
Synthetic Glass (Often Categorized As A Simulated Mineral)
Browse synthetic glass (often categorized as a simulated mineral) specimens identified by the Rock Identifier community.
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Corundum (Sapphire variant)
Aluminium oxide (Al2O3)
mineral
Green Calcite
Calcite (CaCO3)
mineral
Slag (Industrial Glassy Byproduct)
Ferro-silicate Slag
Anthropogenic / Non-Natural
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Blue Lepidolite
Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral
Sandstone (Quartzose Sandstone)
Arenite (SiO2 primarily)
sedimentary
Green Adventurine
SiO2 (Silicon Dioxide with inclusions of Fuchsite mica)
mineral
Jasper
Jasper (Silicate mineral, SiO2)
sedimentary
Quartz (Milky or Cloudy Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble (Chalcedony/Agate variety)
Silicon Dioxide (SiO2)
mineral
Quartz with Mica (Gneissic or Pegmatitic origin)
Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(F,OH)2)
metamorphic
Pink Granite
Granite (Phaneritic Quartz-Feldspar Rock)
igneous
Milky Quartz (Pebble)
Silicon Dioxide (SiO2)
mineral
Amethyst
Silicon Dioxide (SiO2) containing iron impurities
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Riverstone Jasper (Chert variant)
Silicon Dioxide (SiO2)
sedimentary
Granitic Quartz with Feldspar
Granite (composed primarily of SiO2 and KAlSi3O8)
igneous
Rough Quartz in Pegmatite Matrix
Quartz (Silicon Dioxide - SiO2) in Granitic Pegmatite
igneous
Beach Pebble (likely Quartz or Chalcedony)
Silicon Dioxide (SiO2)
Mineral
Sandstone (Ferruginous)
Arenite (Fe-rich)
sedimentary
Sandstone
Arenite (primarily SiO2)
sedimentary
Fluorite
Calcium Fluoride (CaF2)
mineral
Sandstone
Arenite (SiO2 based with quartz grains)
sedimentary
Pyrite (Fool's Gold)
Iron Sulfide (FeS2)
mineral
Sandstone (Red Sandstone / River Stone)
Arenite (composed primarily of Quartz, SiO2, with Iron Oxide cementation)
sedimentary
Sandstone
Clastic sedimentary rock (primarily SiO2)
sedimentary
White Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Citrine (Heat-treated or Natural Quartz)
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (SiO2 with Fe2O3)
sedimentary
Chert (Yellow Jasper)
Silicon Dioxide (SiO2)
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
sedimentary
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Lavender Quartz (appearing as beads) and Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Arsenopyrite in Quartz Matrix
Arsenopyrite (FeAsS) with Quartz (SiO2)
Mineral in a Metamorphic/Hydrothermal rock
Chalcedony (Common Opal variant or Agate)
Silicon Dioxide (SiO2)
mineral
Sandstone (Ferruginous)
Arenite (primarily SiO2 with iron oxide staining/cementing)
sedimentary