Rock Identifier

Category

Man Made Glass

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

Learn about Man Made Glass in the encyclopedia

Opalite

Goldstone

Blue Goldstone

Zincite

Mint Obsidian

Blue Obsidian

Green Obsidian

Crimson Obsidian

Cherry Obsidian

Violet Obsidian

Cobalt Blue Obsidian

Tangerine Obsidian

Quartzite (Metamorphic Quartzite (primarily SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (primarily SiO2)

Chert (often called Flint when dark or worked) (Cryptocrystalline silica (SiO2)) — sedimentary

Chert (often called Flint when dark or worked)

Cryptocrystalline silica (SiO2)

Sandstone (Arenite (predominantly SiO2 quartz grains)) — sedimentary

Sandstone

Arenite (predominantly SiO2 quartz grains)

Granite (Granite (a plutonic igneous rock composed of quartz, feldspar, and mica)) — igneous

Granite

Granite (a plutonic igneous rock composed of quartz, feldspar, and mica)

Quartzite (Quartzite (mostly SiO2)) — metamorphic

Quartzite

Quartzite (mostly SiO2)

Rhodonite (Manganese Silicate (Mn,Fe,Mg,Ca)SiO3) — mineral

Rhodonite

Manganese Silicate (Mn,Fe,Mg,Ca)SiO3

Quartzite Pebble (Metamorphosed Silicon Dioxide (SiO2)) — metamorphic

Quartzite Pebble

Metamorphosed Silicon Dioxide (SiO2)

Quartzite (Quartzite (SiO2)) — metamorphic

Quartzite

Quartzite (SiO2)

Tumbled Rose Quartz with Peach Inclusions (Silicon Dioxide (SiO2)) — mineral

Tumbled Rose Quartz with Peach Inclusions

Silicon Dioxide (SiO2)

Quartzite (Metamorphic Quartzite (SiO2)) — metamorphic

Quartzite

Metamorphic Quartzite (SiO2)

Rose Quartz (Rose Quartz (SiO2 with trace Ti, Fe, or Mn)) — mineral

Rose Quartz

Rose Quartz (SiO2 with trace Ti, Fe, or Mn)

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Rose Quartz (SiO2 (Silicon Dioxide)) — mineral

Rose Quartz

SiO2 (Silicon Dioxide)

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

Yellow Citrine Quartz

Silicon Dioxide (SiO₂)

Red Jasper (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper (Iron Oxide Rich) (Silicon Dioxide (SiO2) with Fe2O3 (Hematite/Goethite) inclusions) — sedimentary

Jasper (Iron Oxide Rich)

Silicon Dioxide (SiO2) with Fe2O3 (Hematite/Goethite) inclusions

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

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Red Jasper (Chert) (Silicon Dioxide (SiO2)) — sedimentary

Red Jasper (Chert)

Silicon Dioxide (SiO2)

Milk Quartz (Vein Quartz) (Quartz (Silicon Dioxide, SiO2)) — mineral

Milk Quartz (Vein Quartz)

Quartz (Silicon Dioxide, SiO2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartzite (Quartz sand or Chert) (Quartzite (SiO2)) — metamorphic

Quartzite (Quartz sand or Chert)

Quartzite (SiO2)

Chert (Flint) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Quartz (SiO2)

Diamond (or Simulant) (Carbon (C)) — gemstone

Diamond (or Simulant)

Carbon (C)

Black Onyx (Silicon Dioxide (SiO2) - Cryptocrystalline Quartz) — mineral

Black Onyx

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Quartzite (Quartzite (primarily SiO2)) — metamorphic

Quartzite

Quartzite (primarily SiO2)

Red Jasper (River Siltstone) (Silicon Dioxide (SiO2) with iron oxide inclusions) — sedimentary

Red Jasper (River Siltstone)

Silicon Dioxide (SiO2) with iron oxide inclusions

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

Pink Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz (Citrine or Smoky variety) (Silicon Dioxide (SiO2)) — mineral

Quartz (Citrine or Smoky variety)

Silicon Dioxide (SiO2)

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Quartz Geode (Silicon Dioxide (SiO2) in a Sedimentary Vug) — sedimentary

Quartz Geode

Silicon Dioxide (SiO2) in a Sedimentary Vug

Fluorite (Calcium Fluoride (CaF2)) — mineral

Fluorite

Calcium Fluoride (CaF2)

Green Fluorite (Calcium Fluoride (CaF2)) — mineral

Green Fluorite

Calcium Fluoride (CaF2)

Fluorite (Purple variety) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Purple variety)

Calcium Fluoride (CaF2)

Chert (specifically Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Peridot (Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)) — mineral

Peridot

Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)

Amber (Succinite (specifically Baltic Amber) - Formula: C10H16O (approximate)) — Organic Mineraloid

Amber

Succinite (specifically Baltic Amber) - Formula: C10H16O (approximate)

Organic Mineraloid

Rose Quartz (Silicon Dioxide (SiO2)) — mineral

Rose Quartz

Silicon Dioxide (SiO2)

Fluorite (Rainbow Fluorite) (Calcium Fluoride (CaF2)) — mineral

Fluorite (Rainbow Fluorite)

Calcium Fluoride (CaF2)

Yellow Quartz (Chalcedony/Citrine Pebble) (Silicon Dioxide (SiO2)) — mineral

Yellow Quartz (Chalcedony/Citrine Pebble)

Silicon Dioxide (SiO2)

Chert (specifically Gray Chert) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (specifically Gray Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartzite River Pebbles (Quartzite (primarily SiO2)) — Metamorphic

Quartzite River Pebbles

Quartzite (primarily SiO2)

Rose Quartz (Quartz (Silicon Dioxide) - SiO2) — mineral

Rose Quartz

Quartz (Silicon Dioxide) - SiO2