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

Red Jasper and Green Aventurine (Silicon dioxide (SiO2)) — mineral

Red Jasper and Green Aventurine

Silicon dioxide (SiO2)

Quartz (Silicon dioxide (SiO2)) — mineral

Quartz

Silicon dioxide (SiO2)

Jasper (Microcrystalline Quartz (SiO2)) — Sedimentary/Mineral

Jasper

Microcrystalline Quartz (SiO2)

Sedimentary/Mineral

Black Obsidian (Volcanic Glass (SiO2 + impurities)) — igneous

Black Obsidian

Volcanic Glass (SiO2 + impurities)

Obsidian (Volcanic Glass (SiO2 + impurities)) — igneous

Obsidian

Volcanic Glass (SiO2 + impurities)

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

Quartz River Pebble

Silicon Dioxide (SiO2)

Tumbled brown quartz/chalcedony (probable) (Quartz, SiO₂; possibly brown chalcedony or jasper) — mineral

Tumbled brown quartz/chalcedony (probable)

Quartz, SiO₂; possibly brown chalcedony or jasper

Black Obsidian (Obsidian (Volcanic Glass, rich in SiO2)) — igneous

Black Obsidian

Obsidian (Volcanic Glass, rich in SiO2)

Obsidian (Obsidian) — Igneous

Obsidian

Obsidian

Obsidian (Gold Sheen) (Obsidian (SiO2 + impurities)) — igneous

Obsidian (Gold Sheen)

Obsidian (SiO2 + impurities)

Fulgurite (Lechatelierite (Silica glass), typically SiO2) — mineraloid

Fulgurite

Lechatelierite (Silica glass), typically SiO2

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

Chert (Flint Pebbles)

Microcrystalline Quartz (SiO2)

Mixed Quartz and River Pebbles (Stone Collection) (Mixed assortment containing mainly Silicon Dioxide (SiO2)) — igneous, sedimentary, metamorphic, and mineral

Mixed Quartz and River Pebbles (Stone Collection)

Mixed assortment containing mainly Silicon Dioxide (SiO2)

igneous, sedimentary, metamorphic, and mineral

Quartz-bearing iron-rich rock, possibly quartzite or hydrothermal breccia (Quartz (SiO₂) with iron oxides/hydroxides, likely limonite/goethite; exact host rock is uncertain from the photograph) — metamorphic

Quartz-bearing iron-rich rock, possibly quartzite or hydrothermal breccia

Quartz (SiO₂) with iron oxides/hydroxides, likely limonite/goethite; exact host rock is uncertain from the photograph

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

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz / Quartzite (Silicon Dioxide (SiO2)) — Mineral / Metamorphic

Quartz / Quartzite

Silicon Dioxide (SiO2)

Mineral / Metamorphic

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

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz crystals on matrix (Silicon dioxide (SiO2)) — mineral

Quartz crystals on matrix

Silicon dioxide (SiO2)

Quartz Pebble (Silicon Dioxide (SiO2)) — mineral

Quartz Pebble

Silicon Dioxide (SiO2)

Quartzite pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite pebble

Quartzite (primarily SiO2)

Chert (or Carnelian Agate) (Microcrystalline Quartz (SiO2)) — sedimentary

Chert (or Carnelian Agate)

Microcrystalline Quartz (SiO2)

Quartz (Rock Crystal) (Quartz (SiO₂ - Silicon Dioxide)) — Mineral

Quartz (Rock Crystal)

Quartz (SiO₂ - Silicon Dioxide)

Snowflake Obsidian (Volcanic glass (SiO2) with Cristobalite (SiO2) inclusions) — igneous

Snowflake Obsidian

Volcanic glass (SiO2) with Cristobalite (SiO2) inclusions

Obsidian (Volcanic Glass (Silica / SiO2)) — igneous

Obsidian

Volcanic Glass (Silica / SiO2)

Obsidian (Volcanic Glass (Amorphous SiO2)) — igneous

Obsidian

Volcanic Glass (Amorphous SiO2)

Moldavite (Tektite (Natural Silicate Glass)) — gemstone

Moldavite

Tektite (Natural Silicate Glass)

Apache Tear (Obsidian) (Volcanic Glass (Amorphous SiO2)) — igneous

Apache Tear (Obsidian)

Volcanic Glass (Amorphous SiO2)

Pumice (Pumice (Felsic volcanic glass)) — igneous

Pumice

Pumice (Felsic volcanic glass)

Black Obsidian (Volcanic glass (Amorphous silicates)) — igneous

Black Obsidian

Volcanic glass (Amorphous silicates)

Black Obsidian (Volcanic Glass (SiO2 with impurities)) — igneous

Black Obsidian

Volcanic Glass (SiO2 with impurities)

Pumice (Pumice (Felsic Volcanic Glass)) — igneous

Pumice

Pumice (Felsic Volcanic Glass)

Black Obsidian (Volcanic Glass (SiO2 with impurities)) — igneous

Black Obsidian

Volcanic Glass (SiO2 with impurities)

Pumice (Pumice (Silicic volcanic glass)) — igneous

Pumice

Pumice (Silicic volcanic glass)

Pumice (Volcanic Glass / Pumiceous Rhyolite) — igneous

Pumice

Volcanic Glass / Pumiceous Rhyolite

Obsidian (Volcanic Glass (Rich in SiO2)) — igneous

Obsidian

Volcanic Glass (Rich in SiO2)

Pumice (Pumice (volcanic glass rock)) — igneous

Pumice

Pumice (volcanic glass rock)

Apache Tear (Obsidian) (Volcanic Glass (SiO2 + impurities)) — igneous

Apache Tear (Obsidian)

Volcanic Glass (SiO2 + impurities)

Black Obsidian (Obsidian (Volcanic Glass, SiO2+)) — igneous

Black Obsidian

Obsidian (Volcanic Glass, SiO2+)

Obsidian (Volcanic Glass (Amorphous Silica)) — igneous

Obsidian

Volcanic Glass (Amorphous Silica)

Obsidian (Volcanic Glass (Amorphous SiO2)) — igneous

Obsidian

Volcanic Glass (Amorphous SiO2)

Gold Sheen Obsidian (Volcanic Glass (SiO2 + impurities)) — igneous

Gold Sheen Obsidian

Volcanic Glass (SiO2 + impurities)

Pumice (Pumice (a vesicular volcanic glass)) — igneous

Pumice

Pumice (a vesicular volcanic glass)