Libyan Desert Glass
Libyan Desert Glass (Impactite / High-silica Lechatelierite)
mineral
Category
Glass
Browse glass specimens identified by the Rock Identifier community.
Learn about Glass in the encyclopedia
View all →
Glass / Silicon Dioxide (Man-made)
SiO2 (Amorphous Silicon Dioxide)
Amorphous Solid
Snowflake Obsidian
Volcanic glass with Cristobalite inclusions (mostly SiO2)
igneous
Obsidian
Obsidian (principally SiO2 - Silicon Dioxide)
igneous
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Opalite
Man-made opalescent glass (SiO2 + metal oxides)
mineral (synthetic)
Sea Glass
Amorphous Silica (SiO2) with various additives
Mineraloid (Anthropogenic)
Chert (Flint Gravel)
Silicon Dioxide (SiO2)
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Chert / Flint
Silicon Dioxide (SiO2)
sedimentary
Opalite (Man-made Glass)
Synthetic Opalised Glass
mineral
Snowflake Obsidian
Volcanic glass with Cristobalite inclusions (70–75% SiO2)
Igneous
Blue Goldstone
Aventurine Glass (SiO2 with Cobalt/Copper inclusions)
man-made glass
Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Man-made Crystal (Lead Glass)
Lead oxide-doped Silica Glass (approx. SiO2 + PbO)
Mineraloid/Synthetic Material
Snowflake Obsidian
Vitreous volcanic silicate (SiO2 with Cristobalite inclusions)
igneous
Muscovite Mica (with Quartz matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Green glass sphere/marble
Soda-lime glass (primarily SiO2, Na2O, CaO)
Man-made object (Simulant)
Obsidian
Volcanic glass
igneous
Blue Goldstone
Aventurine Glass
man-made glass
Obsidian
Volcanic glass
igneous
Obsidian
Volcanic glass
igneous
Blue Goldstone
Aventurine Glass
Man-made glass (often grouped with minerals in lapidary)
Obsidian
Volcanic glass
igneous
Blue Goldstone
Aventurine Glass
Man-made mineral simulant (Glass)
Blue Goldstone
Aventurine Glass (Silicon Dioxide with metal inclusions)
man-made glass mineral simulant
Obsidian
Volcanic Glass (SiO2 + minor impurities)
igneous
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Muscovite Schist
KAl2(AlSi3O10)(OH)2 (Muscovite) in Schist Matrix
metamorphic
Chert (variations include Flint or Jasper)
Silicon Dioxide (SiO2)
sedimentary
Snowflake Obsidian
Volcanic Glass (spherulitic obsidian)
igneous
Snowflake Obsidian
Obsidian with Cristobalite inclusions (70-75% SiO2)
igneous
Obsidian
Obsidian (Volcanic Glass)
igneous
Obsidian
Obsidian (Volcanic Glass)
igneous
Snowflake Obsidian
Spherulitic Obsidian (Volcanic Glass with Cristobalite inclusions)
igneous
Blue Goldstone
Goldstone (artificial glass)
Mineral (man-made glass, not natural)
Quartz (Milky/Clear variety)
Silicon Dioxide (SiO2)
mineral
Goldstone (Red)
Aventurine Glass
Man-made material (Simulated Mineral)
Obsidian
Volcanic glass
igneous
Sea Glass (Turquoise/Aqua)
Amorphous Silica (SiO2) with transition metal dopants
Anthropogenic (Man-made material processed by nature)
Chert (Flint)
Chert (SiO2)
sedimentary
Chert (often called Flint when dark)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary