Coarse-grained Quartz with Feldspar inclusions
Crystalline Quartz (SiO2) with Orthoclase/Plagioclase Feldspar inclusions
Category
Browse man made mineral simulant (glass) specimens identified by the Rock Identifier community.
Coarse-grained Quartz with Feldspar inclusions
Crystalline Quartz (SiO2) with Orthoclase/Plagioclase Feldspar inclusions
Quartzite Pebble (with Iron Inclusions)
Quartzite (primarily SiO2 with Fe2O3/FeOOH impurities)
Granite
Phaneritic Plutonic Felsic Rock
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Polished porphyritic basalt (likely)
Basalt, a fine-grained mafic volcanic rock; visible inclusions may be olivine, feldspar, or vesicle infillings
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Green Aventurine
Silicon Dioxide (SiO2) with Fuchsite inclusions
Likely iron-rich chert or jasper
Microcrystalline quartz (SiO₂), variably stained by iron oxides/hydroxides
Quartz (Common or Milky)
Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Obsidian
Volcanic Glass (Silicon Dioxide with impurities)
Quartz Crystal Cluster
Silicon Dioxide (SiO2)
Amethyst Cluster
Silicon Dioxide (SiO2) with iron impurities
Sandstone
Sedimentary Clastic Rock
Sandstone
Sedimentary Rock (Quartz arenite)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Sandstone
Arenite (SiO2 principal)
Sandstone
Arenite (primarily SiO2)
Sandstone
Arenite (primarily SiO2)
Sandstone
Clastic sedimentary rock (primarily SiO2)
Polished orbicular jasper (likely ocean jasper)
Silicified microcrystalline quartz/chalcedony (SiO₂), with iron-oxide and other mineral inclusions
Quartz with Mica/Chlorite inclusions
Silicon Dioxide (SiO2) with phyllosilicate inclusions
Chert (Holey Stone)
Microcrystalline Quartz (SiO2)
Clear Quartz
Silicon Dioxide (SiO2)
Sea Glass
Amorphous silicon dioxide (glass)
Sandstone (likely Conglomerate or Gritstone)
Arenite (SiO2 based)
Sandstone
Arenite (SiO2 principal)
Rough Quartz (Alluvial Pebbles)
Silicon Dioxide (SiO2)
Chert (Flint)
Chert (Cryptocrystalline Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Quartz Pebble
Crystalline Silicon Dioxide (SiO2)
Quartz Pebble
Silicon Dioxide (SiO2)
Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)
Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))
Clear Quartz
Silicon Dioxide (SiO2)