Muscovite Mica (with Quartz)
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Category
Synthetic Glass
Browse synthetic glass specimens identified by the Rock Identifier community.
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Muscovite Mica
KAl2(AlSi3O10)(F,OH)2
mineral
Obsidian
Obsidian (Volcanic glass, primarily SiO2)
igneous
Quartz with Muscovite Mica
SiO2 with KAl2(AlSi3O10)(OH)2
mineral group
Obsidian
Obsidian (Volcanic Glass)
igneous
Blue Goldstone
Man-made glass with suspended copper, cobalt, or manganese particles
man-made glass
Blue Sea Glass
Amorphous Silica (Anthropogenic glass)
not a rock (man-made origin)
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Mineraloid / Industrial Byproduct
Slag
Ferrous slag (by-product of iron smelting)
Mineraloid / Anthropogenic
Muscovite Mica
Muscovite, KAl2(AlSi3O10)(OH)2
mineral
Chert (Quartz)
Silicon dioxide (SiO2)
sedimentary
Green Aventurine
Quartz containing Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Muscovite
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Muscovite Mica (in Quartz/Feldspar Matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Muscovite
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Chert (specifically Gray Chert)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Mica (Muscovite)
Potassium aluminum silicate - KAl2(AlSi3O10)(OH)2
mineral
Pumice
Pumice
igneous
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Muscovite Mica
Muscovite (KAl2(AlSi3O10)(OH)2)
mineral
Muscovite Mica (on Quartz Matrix)
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Muscovite Mica
Muscovite - KAl2(AlSi3O10)(OH)2
mineral
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
metamorphic
Libyan Desert Glass
Libyan Desert Glass (Tektite / Impact Glass)
meteorite
Snowflake Obsidian (Polished Cabochon)
Obsidian with Spherulitic Cristobalite (SiO2)
igneous
Obsidian
Obsidian (Volcanic Glass, SiO2 + impurities)
igneous
Snowflake Obsidian
Volcanic Glass (SiO2 with Cristobalite inclusions)
igneous
Sea Glass (Kelly Green)
Amorphous Silica (Silicon Dioxide with Iron/Chromium additives)
Anthropogenic specimen (Man-made material)
Green Slag Glass
Amorphous Silica / Glassy Blast Furnace Slag
Mineraloid (Industrial byproduct)
Libyan Desert Glass
Libyan Desert Glass (Impactite / High-silica Lechatelierite)
mineral
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Snowflake Obsidian
Volcanic Glass with Spherulite Inclusions (70–75% SiO2)
igneous
Snowflake Obsidian
Spherulitic Obsidian (Volcanic Glass with Cristobalite inclusions)
igneous
Obsidian with Mahogany Phasing
Volcanic Glass (SiO2 + Fe2O3)
igneous
Snowflake Obsidian
Volcanic Glass (SiO2) with Cristobalite inclusions
igneous
Snowflake Obsidian
Volcanic glass with Spherulite inclusions (SiO2)
igneous
Rhinestone
Artificial Glass/Crystal
gemstone
Chert (Fossiliferous Chert/Flint)
Silicon Dioxide (SiO2)
sedimentary
Glass / Silicon Dioxide (Man-made)
SiO2 (Amorphous Silicon Dioxide)
Amorphous Solid
Snowflake Obsidian
Volcanic glass with Cristobalite inclusions (mostly SiO2)
igneous