Rock Identifier

Category

Synthetic (Man Made Glass)

Browse synthetic (man made glass) specimens identified by the Rock Identifier community.

Learn about Synthetic (Man Made Glass) in the encyclopedia

Opalite

Goldstone

Zincite

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Blue Goldstone

Sideromelane

Lead Feldspar

Black Obsidian

Maskelynite

Obsidian

Tachylite

Map Jasper

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Obsidian with Spherulitic Devitrification (Snowflake Obsidian/Mahogany related) (Volcanic Glass (70% or more SiO2)) — igneous

Obsidian with Spherulitic Devitrification (Snowflake Obsidian/Mahogany related)

Volcanic Glass (70% or more SiO2)

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Limestone (Calcium Carbonate (CaCO3)) — sedimentary

Limestone

Calcium Carbonate (CaCO3)

Quartzite with Iron Inclusions (Quartzite (SiO2)) — metamorphic

Quartzite with Iron Inclusions

Quartzite (SiO2)

Chert (Commonly called Jasper or Flint) (Chert (SiO2)) — sedimentary

Chert (Commonly called Jasper or Flint)

Chert (SiO2)

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

Cloudy Quartz (or Milky Quartz)

Silicon Dioxide (SiO2)

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

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Smoky Quartz (Silicon Dioxide (SiO2)) — mineral

Smoky Quartz

Silicon Dioxide (SiO2)

Moldavite (Tektite (Silicates with aluminum, iron, manganese, and potassium oxide glass)) — meteorite

Moldavite

Tektite (Silicates with aluminum, iron, manganese, and potassium oxide glass)

Clear Quartz and Rose Quartz Bracelet (Silicon Dioxide (SiO2)) — mineral

Clear Quartz and Rose Quartz Bracelet

Silicon Dioxide (SiO2)

Granite (Granite (composed primarily of Quartz, Feldspar, and Mica)) — igneous

Granite

Granite (composed primarily of Quartz, Feldspar, and Mica)

Quartz (Silicon dioxide (SiO2)) — Mineral

Quartz

Silicon dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Clear Quartz (Quartz (Silicon Dioxide, SiO2)) — Mineral

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz Vein in Host Rock (Breccia/Rhyolite) (Silicon Dioxide (SiO2) with matrix) — Mineral in Igneous/Sedimentary host

Quartz Vein in Host Rock (Breccia/Rhyolite)

Silicon Dioxide (SiO2) with matrix

Mineral in Igneous/Sedimentary host

Pumice (Pumiceous rhyolite) — igneous

Pumice

Pumiceous rhyolite

Pumice (Pumicite) — igneous

Pumice

Pumicite

Pumice (Pumice (Volcanic Rock)) — igneous

Pumice

Pumice (Volcanic Rock)

Pumice (Vesicular volcanic glass (primarily Alumino-silicates)) — igneous

Pumice

Vesicular volcanic glass (primarily Alumino-silicates)

Pumice (Pumicite) — igneous

Pumice

Pumicite

Obsidian (Volcanic glass (SiO2-rich extrusive igneous rock)) — igneous

Obsidian

Volcanic glass (SiO2-rich extrusive igneous rock)

Tumbled quartz (likely clear quartz) (Quartz, silicon dioxide (SiO₂)) — mineral

Tumbled quartz (likely clear quartz)

Quartz, silicon dioxide (SiO₂)

Yellow chalcedony (likely citrine or iron-stained quartz) (Microcrystalline quartz, SiO₂; yellow coloration likely from iron oxides or included quartz varieties) — mineral

Yellow chalcedony (likely citrine or iron-stained quartz)

Microcrystalline quartz, SiO₂; yellow coloration likely from iron oxides or included quartz varieties

Blue-green fluorite (probable) (Fluorite, calcium fluoride (CaF₂)) — mineral

Blue-green fluorite (probable)

Fluorite, calcium fluoride (CaF₂)

Iron-rich chert or jasper fragment (Microcrystalline quartz (SiO₂), commonly hematite/goethite-bearing) — sedimentary

Iron-rich chert or jasper fragment

Microcrystalline quartz (SiO₂), commonly hematite/goethite-bearing

Purple fluorite (likely cubic crystal aggregate) (Fluorite, calcium fluoride (CaF₂)) — mineral

Purple fluorite (likely cubic crystal aggregate)

Fluorite, calcium fluoride (CaF₂)

Obsidian / Volcanic Glass (Obsidian (principally SiO2, usually 70% or more)) — igneous

Obsidian / Volcanic Glass

Obsidian (principally SiO2, usually 70% or more)

Quartzite (Quartzite (principally SiO2)) — metamorphic

Quartzite

Quartzite (principally SiO2)

Quartzite (River Cobble) (Quartzite (predominantly SiO2)) — metamorphic

Quartzite (River Cobble)

Quartzite (predominantly SiO2)

Chert (Agate/Flint variant) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Agate/Flint variant)

Microcrystalline Quartz (SiO2)

Quartzite Pebble (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite Pebble

Metamorphic Quartzite (SiO2)

Chert (Tan/Grey variety) (Microcrystalline or cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Tan/Grey variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Yellow Quartz (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz

Silicon Dioxide (SiO2)

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

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

Quartz (Iron-stained or Milky)

Silicon Dioxide (SiO2)

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

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky/Clear Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Milky/Clear Fragment)

Silicon Dioxide (SiO2)