Dyed Quartz Pendant
Silicon Dioxide (SiO2) with artificial dye
mineral
Category
Mineral Like (Natural Glass)
Browse mineral like (natural glass) specimens identified by the Rock Identifier community.
Learn about Mineral Like (Natural Glass) in the encyclopedia
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Citrine (Heat-treated Amethyst)
Citrine Quartz (SiO2)
Mineral (Tectosilicate)
Clear Quartz Crystal (Rock Crystal)
Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone
Sedimentary Rock (Quartz arenite)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Clear Quartz (Rock Crystal)
Silicon Dioxide (SiO2)
mineral
Obsidian
Obsidian (Volcanic Glass) SiO2 (70% or more)
igneous
Clear Quartz Point
Silicon Dioxide (SiO2)
mineral
Citrine (Yellow Quartz)
Silicon Dioxide (SiO2)
Mineral
Tektite
Impactite (Natural Silicate Glass)
meteorite
Sandstone
Arenite (SiO2 based)
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Citrine
Silicon Dioxide (SiO2) - Macrocrystalline Quartz variety
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Slag Glass
Amorphous Silica (Industrial byproduct)
Antropogenic (Man-made glass byproduct)
Green Aventurine
Quartz containing Fuchsite (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
mineral
Strawberry Quartz and Rose Quartz
Silicon Dioxide (SiO2) with inclusions
mineral
Snowflake obsidian cabochon
Obsidian (volcanic glass), SiO₂-rich; white areas are cristobalite/spherulitic devitrification
igneous
Banded Chert / Chalcedony
Silicon Dioxide (SiO2)
sedimentary
Strawberry Quartz (or Sunstone / Tumbled Quartz)
Silicon Dioxide (SiO2) with Hematite/Lepidocrocite inclusions
mineral
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide)
Igneous
Obsidian (black volcanic glass)
Obsidian; predominantly rhyolitic volcanic glass, mainly SiO₂ with minor feldspar, quartz, and iron oxides
igneous
Smoky Quartz (with Iron Inclusions)
Silicon Dioxide (SiO2)
mineral
Cullet Glass (Man-made Glass Slag)
Amorphous Silica (SiO2) with chemical additives
Mineraloid
Clear Quartz
Silicon Dioxide (SiO2)
mineral
Cullet Glass (Slag)
Amorphous Silicon Dioxide (Man-made)
Mineraloid
Banded Sandstone (Beach Pebble)
Quartz Arenite Sandstone
sedimentary
Sandstone
Arenite (specifically Iron-stained Quartz Sandstone)
sedimentary
Lemon Quartz (Orizaba/Citrinated Quartz)
Silicon Dioxide (SiO2) with iron impurities/treatment
mineral
Yellow Quartz (Citrine/Yellow Jasper)
Silicon Dioxide (SiO2)
mineral
Citrine Quartz
Silicon Dioxide (SiO2)
mineral
Strawberry Quartz
Silicon Dioxide (SiO2) with Hematite or Goethite inclusions
mineral
Heat-Treated Amethyst (Commercial Citrine)
Silicon Dioxide (SiO2) with iron impurities
mineral
Sandstone
Arenite (primarily SiO2)
sedimentary
Mahogany Obsidian
Volcanic Glass with Hematite inclusions (SiO2)
igneous
Green glassy slag or manufactured glass bead
Noncrystalline silicate glass; likely industrial glass/slag, not a true mineral
mineral
Red Slag Glass
Amorphous Silica (Industrial byproduct with metallic oxide dopants)
Mineraloid / Industrial Byproduct
Citrine (Heat-treated)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (likely Arkosic or Lithic)
Clastic Sedimentary Rock (SiO2 with accessory minerals)
sedimentary
Sandstone (Quartzose)
Arenite (primarily SiO2)
sedimentary
Sandstone
Arenite
sedimentary