Man Made Mineral Simulant (Glass)

Muscovite

Muscovite, KAl2(AlSi3O10)(OH)2

Muscovite Mica

Muscovite - KAl2(AlSi3O10)(F,OH)2

Quartz (Citrine or Smoky variety)

Silicon Dioxide (SiO2)

Orange calcite

Calcite (CaCO₃)

Mica (Biotite or Phlogopite variety)

Phyllosilicate (complex mineral formula involving K, Mg, Fe, Al, Si, and O)

Black tourmaline beads (likely schorl)

Schorl, NaFe₃Al₆(BO₃)₃Si₆O₁₈(OH)₄

Lepidolite

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

Yellow Chert (Chert / Cryptocrystalline Quartz)

Silicon Dioxide (SiO2)

Yellow Quartzite (River Pebble)

Quartzite (mainly SiO2 with iron oxide impurities)

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

Feldspar

Aluminosilicate (KAlSi3O8 - NaAlSi3O8 - CaAl2Si2O8)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz with Hematite Staining

Silicon Dioxide (SiO2) with Ferric Oxide (Fe2O3) inclusions

Smoky Quartz on Feldspar (Granite Pegmatite)

Silicon Dioxide (SiO2) with Potassium Aluminum Silicate (KAlSi3O8)

Tumbled white quartz pebble

Quartz (silicon dioxide, SiO₂)

Green Quartz (Aventurine)

Silicon Dioxide with Fuchsite inclusions (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Pyrite

Iron Pyrite (FeS2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz Pebble

Quartz (Silicon Dioxide - SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz with Feldspar Veining

Silica (SiO2) with Potassium Feldspar (KAlSi3O8) inclusions

Quartz (specifically Clear and Rose Quartz)

Silicon Dioxide (SiO2)

Tumbled quartz (likely clear quartz)

Quartz, silicon dioxide (SiO₂)

Yellow chalcedony (likely citrine or iron-stained quartz)

Microcrystalline quartz, SiO₂; yellow coloration likely from iron oxides or included quartz varieties

Blue-green fluorite (probable)

Fluorite, calcium fluoride (CaF₂)

Purple fluorite (likely cubic crystal aggregate)

Fluorite, calcium fluoride (CaF₂)

Quartz (Gravel Pebble)

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Milky quartz

Quartz (silicon dioxide, SiO₂)

Quartz

Silicon Dioxide (SiO2)

Jasper-bearing Quartzite River Cobble

Tectonized Quartzite with Iron-Oxide (Hematite/Limonite) Veining

Pink Granite

Phaneritic Felsic Igneous Rock

Quartz with Mica/Host Rock

Silicon Dioxide (SiO2) with Phyllosilicates

Iron-stained quartz or quartz-rich rock

Quartz (SiO₂), likely milky quartz with hematite/goethite staining

Tumbled blue-green fluorite (probable)

Fluorite, calcium fluoride (CaF₂)

Obsidian

Volcanic Glass (predominantly SiO2)

Mahogany Obsidian

Volcanic Glass (SiO2 + Fe2O3)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Obsidian

Volcanic Glass (70% or more SiO2)

Snowflake Obsidian

Spherulitic Volcanic Glass (primarily SiO2 with Cristobalite inclusions)