Rock Identifier

Category

Synthetic Glass

Browse synthetic glass specimens identified by the Rock Identifier community.

Learn about Synthetic Glass in the encyclopedia

Opalite

Yttrium Aluminum Garnet

Yttrium Aluminum Garnet

Zincite

Sideromelane

Lead Feldspar

Black Obsidian

Maskelynite

Obsidian

Tachylite

Hyalite Opal

Perlite

Macusanite

Tektite (Indochinite) (Tektite (Silica-rich natural glass)) — mineral

Tektite (Indochinite)

Tektite (Silica-rich natural glass)

Pumice (Pumice (Vesicular Rhyolite/Dacite)) — igneous

Pumice

Pumice (Vesicular Rhyolite/Dacite)

Snowflake Obsidian (Volcanic Glass with Spherulitic Cristobalite Inclusion) — igneous

Snowflake Obsidian

Volcanic Glass with Spherulitic Cristobalite Inclusion

Silver Flakes in Glass (Silver (Ag)) — mineral

Silver Flakes in Glass

Silver (Ag)

Clear Quartz (Silicon Dioxide (SiO2)) — mineral

Clear Quartz

Silicon Dioxide (SiO2)

Tektite (Indochinite) (Tektite (High-silica natural glass)) — mineralogical glass/meteorite impactite

Tektite (Indochinite)

Tektite (High-silica natural glass)

mineralogical glass/meteorite impactite

Chert (Flint) (Microcrystalline Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Microcrystalline Silicon Dioxide (SiO2)

Chert (Flint) (Silicon Dioxide (SiO2)) — sedimentary

Chert (Flint)

Silicon Dioxide (SiO2)

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

Milky Quartz (Ferruginous)

Silicon Dioxide (SiO2)

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

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Obsidian with Slate/Tuff (Volcanic glass (SiO2) with associated pyroclastic rock) — igneous

Obsidian with Slate/Tuff

Volcanic glass (SiO2) with associated pyroclastic rock

Obsidian (Volcanic glass (SiO2 - Silicon Dioxide with impurities)) — Igneous

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

Obsidian (Obsidian (Volcanic Glass) SiO2 (70% or more)) — igneous

Obsidian

Obsidian (Volcanic Glass) SiO2 (70% or more)

Obsidian (Volcanic glass (SiO2 - Silicon Dioxide with impurities)) — igneous

Obsidian

Volcanic glass (SiO2 - Silicon Dioxide with impurities)

Milky Quartz (Silicon Dioxide (SiO2)) — mineral

Milky Quartz

Silicon Dioxide (SiO2)

Obsidian (Volcanic Glass (Amorphous Silicon Dioxide)) — igneous

Obsidian

Volcanic Glass (Amorphous Silicon Dioxide)

Mahogany Obsidian (Volcanic Glass with Hematite/Magnetite inclusions) — igneous

Mahogany Obsidian

Volcanic Glass with Hematite/Magnetite inclusions

Quartzite Pebble (Quartzite (primarily SiO2)) — metamorphic

Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite Cobble (Quartzite (SiO2 based)) — metamorphic

Quartzite Cobble

Quartzite (SiO2 based)

Fulgurite (Sand-tube) (Fulgurite (Lechatelierite-rich fused sand)) — metamorphic

Fulgurite (Sand-tube)

Fulgurite (Lechatelierite-rich fused sand)

Slag (Industrial Glass/Metal) (Ferrous slag or Glassy silicate byproduct) — Antropogenic rock (Man-made)

Slag (Industrial Glass/Metal)

Ferrous slag or Glassy silicate byproduct

Antropogenic rock (Man-made)

Snowflake Obsidian (Spherulitic Obsidian (primarily SiO2)) — igneous

Snowflake Obsidian

Spherulitic Obsidian (primarily SiO2)

Weathered feldspar-rich granite or pegmatite (Coarse-grained granitoid, chiefly quartz (SiO₂), potassium feldspar (KAlSi₃O₈), and plagioclase, with minor mica/iron oxides) — igneous

Weathered feldspar-rich granite or pegmatite

Coarse-grained granitoid, chiefly quartz (SiO₂), potassium feldspar (KAlSi₃O₈), and plagioclase, with minor mica/iron oxides

Black Obsidian (Volcanic Glass (Amorphous Silicon Dioxide)) — igneous

Black Obsidian

Volcanic Glass (Amorphous Silicon Dioxide)

Obsidian (Black Obsidian) (Amorphous volcanic glass (primarily SiO2)) — igneous

Obsidian (Black Obsidian)

Amorphous volcanic glass (primarily SiO2)

Chert (Yellow Jasper/Flint) (Microcrystalline or Cryptocrystalline Quartz (SiO2)) — sedimentary

Chert (Yellow Jasper/Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Rock Crystal Quartz Bead (Silicon Dioxide (SiO2)) — mineral

Rock Crystal Quartz Bead

Silicon Dioxide (SiO2)

Quartz pebble (Silicon dioxide (SiO2)) — mineral

Quartz pebble

Silicon dioxide (SiO2)

Quartz (SiO2 (Silicon Dioxide)) — mineral

Quartz

SiO2 (Silicon Dioxide)

White Quartz (Carved Heart) (Silicon Dioxide (SiO2)) — mineral

White Quartz (Carved Heart)

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

Quartz (Silicon Dioxide (SiO2)) — mineral

Quartz

Silicon Dioxide (SiO2)

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

Quartz (Gravel Pebble)

Silicon Dioxide (SiO2)

Quartz (Small Fragment) (Silicon Dioxide (SiO2)) — mineral

Quartz (Small Fragment)

Silicon Dioxide (SiO2)

Quartz in Matrix (Silicon Dioxide (SiO2)) — mineral

Quartz in Matrix

Silicon Dioxide (SiO2)

Chert (Yellow Jasper/Flint) (Microcrystalline quartz (SiO2)) — sedimentary

Chert (Yellow Jasper/Flint)

Microcrystalline quartz (SiO2)

Pumice (Pumice) — igneous

Pumice

Pumice