Rock Identifier

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.

Sandstone (Weathered Cobble) (Clastic Sedimentary Rock (primarily SiO2)) — sedimentary

Sandstone (Weathered Cobble)

Clastic Sedimentary Rock (primarily SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Smoky or Impure Variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Smoky or Impure Variety)

Silicon Dioxide (SiO2)

Green Fluorite (Fluorite (Calcium Fluoride, CaF2)) — mineral

Green Fluorite

Fluorite (Calcium Fluoride, CaF2)

Quartz (Water-worn pebble) (Silicon Dioxide (SiO2)) — mineral

Quartz (Water-worn pebble)

Silicon Dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz (Common Quartz) (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz (Common Quartz)

Quartz (Silicon Dioxide, SiO2)

Milky Quartz / Rose Quartz fragment (Silicon Dioxide (SiO2)) — mineral

Milky Quartz / Rose Quartz fragment

Silicon Dioxide (SiO2)

Blue Quartz (Quartz (Silicon Dioxide) with blue inclusions (SiO2)) — mineral

Blue Quartz

Quartz (Silicon Dioxide) with blue inclusions (SiO2)

Golden Quartz / Iron-stained Quartz (Silicon Dioxide (SiO2) with iron oxide inclusions (Goethite or Limonite)) — mineral

Golden Quartz / Iron-stained Quartz

Silicon Dioxide (SiO2) with iron oxide inclusions (Goethite or Limonite)

Banded Agate (Carnelian variety) (Cryptocrystalline Quartz (SiO2)) — mineral

Banded Agate (Carnelian variety)

Cryptocrystalline Quartz (SiO2)

Yellow Quartz (Citrine Quartz) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Orange Quartz (or Tumbled Carnelian) (Silicon Dioxide (SiO2) with iron oxide inclusions) — mineral

Orange Quartz (or Tumbled Carnelian)

Silicon Dioxide (SiO2) with iron oxide inclusions

White Quartz (Milky Quartz) (Silicon Dioxide (SiO2)) — mineral

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky or White Quartz) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

Quartzite River Rock (Quartzite (primarily SiO2)) — metamorphic

Quartzite River Rock

Quartzite (primarily SiO2)

Jasper with Quartz Vein (Silicon Dioxide (SiO2) with impurities) — sedimentary

Jasper with Quartz Vein

Silicon Dioxide (SiO2) with impurities

Pyrite (Fool's Gold) (Iron Sulfide (FeS2)) — mineral

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Moss Agate (Chalcedony (Silicon Dioxide, SiO2) with inclusions) — mineral

Moss Agate

Chalcedony (Silicon Dioxide, SiO2) with inclusions

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Lepidolite (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Lepidolite (Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)) — mineral

Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Citrine Quartz (Silicon Dioxide (SiO2)) — mineral

Citrine Quartz

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz on Basalt (Silicon Dioxide (SiO2) on Mafic Igneous Rock) — Mineral on Igneous Rock

Quartz on Basalt

Silicon Dioxide (SiO2) on Mafic Igneous Rock

Mineral on Igneous Rock

Milky Quartz with Chlorite inclusions (Silicon Dioxide (SiO2) with Chlorite group minerals) — mineral

Milky Quartz with Chlorite inclusions

Silicon Dioxide (SiO2) with Chlorite group minerals

Aventurine (Silicon Dioxide (SiO2) with inclusions) — mineral

Aventurine

Silicon Dioxide (SiO2) with inclusions

Druzy Quartz on Host Rock (Silicon Dioxide (SiO2) with various iron-oxide inclusions) — mineral

Druzy Quartz on Host Rock

Silicon Dioxide (SiO2) with various iron-oxide inclusions

Quartz with Mica inclusions (likely Schist or Gneiss host) (Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)) — metamorphic

Quartz with Mica inclusions (likely Schist or Gneiss host)

Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(OH)2)

Mica in Quartz Host (Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)) — igneous

Mica in Quartz Host

Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)

Chalcedony (Cryptocrystalline Quartz (SiO2)) — mineral

Chalcedony

Cryptocrystalline Quartz (SiO2)

Quartz (Iron-stained) (Silicon Dioxide (SiO2)) — mineral

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Quartz (Quartz (SiO₂)) — Mineral

Quartz

Quartz (SiO₂)

Milky Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Massive Milky Quartz (with Iron Inclusions) (Quartz (Silicon Dioxide, SiO2)) — mineral

Massive Milky Quartz (with Iron Inclusions)

Quartz (Silicon Dioxide, SiO2)

Quartzite River Rock (Quartzite (primarily SiO2)) — metamorphic

Quartzite River Rock

Quartzite (primarily SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Feldspar (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8) — mineral

Feldspar

KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8

Quartz Pebble (Quartz (Silicon Dioxide, SiO2)) — mineral

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Ferruginous Sandstone (with possible Epidote/Chlorite coloring) (Sandstone (SiO2 dominated with Fe2O3 staining)) — sedimentary

Ferruginous Sandstone (with possible Epidote/Chlorite coloring)

Sandstone (SiO2 dominated with Fe2O3 staining)

Quartz Pebble (Silicon Dioxide (SiO2)) — sedimentary

Quartz Pebble

Silicon Dioxide (SiO2)