Mineral Simulant (Synthetic Glass)

Chakra Tumbled Stone Set

Various (including Amethyst [SiO2], Sodalite [Na8(Al6Si6O24)Cl2], Green Aventurine [SiO2], Red Jasper [SiO2], etc.)

Quartzite

Quartzite (Primary mineral: SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Quartz Druzy Geode Fragment

Silicon Dioxide (SiO2)

Amethyst (Rough Quartz)

Silicon Dioxide (SiO2 with Iron impurities)

Quartz / Quartzite

Silicon Dioxide (SiO2)

Sandstone

Arenite (primarily SiO2)

Pink Lepidolite

Lepidolite (K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2)

Milky Quartz (Quartz Vein)

Silicon Dioxide (SiO2)

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Red Sandstone

Arenite (with Iron Oxide pigmentation)

Obsidian

Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Obsidian

Obsidian (Volcanic Glass, SiO2 + impurities)

Sandstone (specifically Lithic or Quartz Arenite)

Arenite (composed primarily of SiO2)

Greenstone / Epidosite

Epidosite (Metasomatic rock consisting mainly of Epidite Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH) and Quartz)

Tiffany Stone

Fluorite Opal (a complex mix of Fluorite, Opal, Calcite, Dolomite, Quartz, and Bertrandite)

Sandstone

Arenite (SiO2 principal component)

River Quartz

Quartz (Silicon Dioxide, SiO2)

Blue Quartz (Aventurine)

Silicon Dioxide (SiO2) with fibrous inclusions (commonly Dumortierite)

Tektite (Indochinite)

Tektite (Natural Glass, SiO2 + Al2O3)

Tektite (Indochinite)

Tektite (natural glass, SiO2 + Al2O3)

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Quartzite with Dark Mineral Inclusions

Quartzite (primarily SiO2) with accessory minerals

Mixed Quartz and Jasper Pebbles

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Aquamarine (Rough)

Beryl (Be3Al2Si6O18)

Fluorite (Purple/Blue variety)

Calcium Fluoride (CaF2)

Milky Quartz

Silicon Dioxide (SiO2)

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lithium-bearing Phyllosilicate)

Clear Quartz (Rock Crystal Fragments)

Silicon Dioxide (SiO2)