Pink Feldspar with Quartz
Potassium Feldspar (Orthoclase) with SiO2
Category
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
Pink Feldspar with Quartz
Potassium Feldspar (Orthoclase) with SiO2
Quartz Pebble
Silicon Dioxide (SiO2)
Snowflake Obsidian
Volcanic glass containing Spherulitic inclusions (SiO2 + impurities)
Chert (Flint)
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
White quartz pebble
Quartz (silicon dioxide, SiO₂), likely milky quartz
Quartz (Milky/Clear Quartz)
Silicon Dioxide (SiO2)
Quartz Druzy
Silicon Dioxide (SiO2)
Amazonite with Smoky Quartz and Feldspar
Microcline (KAlSi3O8) with Quartz (SiO2)
Quartz geode (likely amethyst-bearing geode)
Microcrystalline quartz and drusy quartz; SiO₂, with possible iron-stained or amethyst quartz
Sandstone Pebble
Arenite (SiO2 complex)
Quartz / Feldspar Specimen
SiO2 (Quartz) / KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8 (Feldspar Group)
Milky Quartz with Inclusions
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Green Aventurine
Quartz with fuchsite inclusions (SiO2)
Green Aventurine
Quartz variety (SiO2 with inclusions of Fuchsite)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
Potassium Feldspar (Orthoclase)
Orthoclase (KAlSi3O8)
Orthoclase Feldspar
Orthoclase (KAlSi3O8)
Quartz pebble
Silicon dioxide (SiO2)
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
Quartz Cluster
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Smoky/Milky variety)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Orange Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Potassium Feldspar (Orthoclase / Microcline)
KAlSi3O8
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Quartz (Water-worn Pebble)
Quartz (Silicon Dioxide, SiO2)
Obsidian
Volcanic glass
Mahogany Obsidian
Volcanic Glass with Hematite or Magnetite (SiO2 + Fe2O3)
White Quartz
Silicon Dioxide (SiO2)
Blue chalcedony (likely common blue agate)
Microcrystalline quartz, SiO₂; chalcedony variety
Chalcedony (likely iron-stained agate)
Microcrystalline quartz, SiO₂ (chalcedony/agate)
Chalcedony (River or Beach Pebbles)
Chalcedony (Silicon Dioxide, SiO2)
Quartz (Citrine or Iron-Stained variety)
Silicon Dioxide (SiO2)
Green Fluorite
Calcium Fluoride (CaF2)