Smoky Quartz
Silicon Dioxide (SiO2)
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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Sandstone
Arenite
sedimentary
Yellow Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone
Arenite (composed primarily of Quartz, SiO2)
sedimentary
Green Aventurine (Propably a tumbled variety)
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
mineral
Opalite
Synthetic Opalized Glass
gemstone
Jasper-bearing Quartzite River Cobble
Tectonized Quartzite with Iron-Oxide (Hematite/Limonite) Veining
metamorphic
Smoky Quartz (Tumbled)
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone
Arenite (primarily Quartz, SiO2)
sedimentary
Citrine
Silicon Dioxide (SiO2)
Mineral
Smoky Quartz
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Sandstone
Arenite (composed primarily of SiO2)
sedimentary
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz (Gray/Smoky Variety)
Silicon Dioxide (SiO2)
mineral
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Mineral (variety of Quartz)
Sandstone
Clastic Sedimentary Rock (primarily SiO2)
sedimentary
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Golden Healer Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite inclusions
mineral
Beads (likely glass or man-made material)
N/A (artificial material)
Man-made material, not a natural rock or mineral specimen
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Yellow Quartz (Golden Quartz)
Silicon Dioxide (SiO2)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2 + Fe4+)
mineral
Smoky Quartz
Smoky Quartz (SiO2)
mineral
Tumbled Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Smoky Quartz
Quartz (Silicon Dioxide) - SiO2
mineral
Diamond (or Diamond Simulant)
Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia ZrO2)
gemstone
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Green Aventurine (Quartz)
SiO2 (Silicon Dioxide with Fuchsite inclusions)
mineral
Black Obsidian
Obsidian / Amorphous volcanic glass (SiO2)
igneous
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble with Mineral Inclusions
Silicon Dioxide (SiO2)
mineral
Quartz (Double-Terminated)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Smoky Quartz (SiO2)
mineral
Tektite
Natural Impact Glass
meteorite
Sandstone
Arenite (SiO2 primarily)
sedimentary
Smoky Quartz (with inclusions)
Silicon Dioxide (SiO2)
mineral
Slag (Industrial Byproduct)
Ferrous/Non-ferrous Silicate
igneous (artificial/anthropogenic)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
metamorphic
Chalcanthite (Likely Synthetic/Lab-Grown)
Hydrated copper(II) sulfate (CuSO4·5H2O)
mineral
Cubic Zirconia
Zirconium dioxide (ZrO2)
mineral