Mica in Quartz Host
Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)
Category
Browse mineral simulant (synthetic glass) specimens identified by the Rock Identifier community.
Mica in Quartz Host
Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Tumbled pale green mineral specimen, likely calcite
Calcite (CaCO₃), tentative identification
Sandstone
Sedimentary Rock (Quartz Arenite)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 based)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Tumbled Amethyst
Quartz (Silicon Dioxide, SiO2)
White Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Quartz (Raw and Water-worn)
Silicon Dioxide (SiO2)
Black Obsidian
Obsidian (Volcanic Glass)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Quarzite or Massive Quartz vein)
Silicon Dioxide (SiO2)
Smoky Quartz with Inclusions
Silicon Dioxide (SiO2)
Green Aventurine (Propably a tumbled variety)
Aventurine Quartz (SiO2 with inclusions of Fuchsite)
Chert (Jasper variation)
Chert (Silicate mineral, SiO2)
Quartzite Pebble
Quartzite (SiO2) with mineral inclusions
Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Potassium Feldspar and Quartz
KAlSi3O8 (Potassium Feldspar) and SiO2 (Quartz)
Small pale rock fragment
Indeterminate; possibly quartz, calcite, or a weathered feldspar-rich fragment
Quartz (Agate/Chalcedony)
Silicon Dioxide (SiO2)
Tumbled white chalcedony (likely milky quartz)
Chalcedony, microcrystalline SiO₂; possibly milky quartz
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Tumbled Aventurine
Silicon Dioxide with inclusions (SiO2 + K(Al,Cr)2AlSi3O10(OH)2)
Green Aventurine
SiO2 (Quartz with Fuchsite inclusions)
Faceted Quartz (Rock Crystal)
Crystalline Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Sandstone
Arenite (primarily Quartz, SiO2)
Sandstone
Arenite (SiO2 primarily)
Sandstone
Arenite (SiO2 based)
Chert / Flint
Chert (Silicon Dioxide, SiO2)
Quartz geode
Microcrystalline and crystalline quartz (SiO₂), likely chalcedony-lined geode
Milky quartz (quartz-rich rock fragment)
Quartz, silicon dioxide (SiO₂)
Clear Quartz
Silicon Dioxide (SiO2)