Mineral (Synthetic Glass)

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Green Aventurine

Aventurine Quartz (SiO2 with Fuchsite inclusions)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Blue Apatite

Chlorapatite / Fluorapatite (Ca5(PO4)3(F,Cl,OH))

Milky Quartz

Silicon Dioxide (SiO2)

Black Obsidian

Volcanic Glass (Primary composition: SiO2 - Silicon Dioxide)

Green Aventurine

Aventurine Quartz (SiO2 with inclusions)

Green Aventurine

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

Granitic Pegmatite

Pegmatite (composed primarily of Quartz, Feldspar, and Muscovite mica)

Snowflake Obsidian

Spherulitic Volcanic Glass (primarily SiO2 with Cristobalite inclusions)

Granite (River Pebble)

Phaneritic intrusive igneous rock (Felsic)

Muscovite Mica (in Quartz/Feldspar Matrix)

Muscovite - KAl2(AlSi3O10)(OH)2

Muscovite

Muscovite (KAl2(AlSi3O10)(OH)2)

Mica (Muscovite)

Potassium aluminum silicate - KAl2(AlSi3O10)(OH)2

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Amethyst (Tumbled Quarz)

Silicon Dioxide (SiO2) with iron impurities

Sandstone (with potential mineral staining/concretions)

Arenite (SiO2 based)

Quartz (Milky/Chalcedony variety)

Silicon Dioxide (SiO2)

Obsidian

Volcanic Glass (predominantly SiO2)

Quartz Pebble (with Mica or Iron staining)

Silicon Dioxide (SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Pink Quartz / Rose Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Quartz (Silicon Dioxide, SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz (Milky/Clear Quartz)

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace Titanium, Manganese, or Iron

Quartz Pebble

Silicon Dioxide (SiO2)

Pink Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Amazonite with Smoky Quartz and Feldspar

Microcline (KAlSi3O8) with Quartz (SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Chert / Flint

Chert (Silicon Dioxide, SiO2)

Quartz (Smoky/Milky variety)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Rose Quartz

Silicon dioxide (SiO2) with trace impurities of titanium, iron, or manganese

Quartz (Grain/Fragment)

Silicon Dioxide (SiO2)

Quartz (Milky/Gravel variety)

Silicon Dioxide (SiO2)

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

Iron-stained Quartz

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3/FeO(OH))

Muscovite Mica (on Quartz Matrix)

Muscovite - KAl2(AlSi3O10)(OH)2

Muscovite Mica

Muscovite - KAl2(AlSi3O10)(OH)2