Mineral (Synthetic Glass)

Citrine

Citrine (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Chalcedony

Cryptocrystalline Quartz (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Quartz (Milky/Common Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Smoky/Milky variety with matrix)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Quartz Pebble (Sea Glass-like Quartz)

Quartz (Silicon Dioxide - SiO2)

Muscovite Mica (likely on Quartz/Feldspar)

Muscovite - KAl2(AlSi3O10)(OH)2

Milky Quartz

Silicon Dioxide (SiO2)

Obsidian

Volcanic glass

Sea Glass (Teal/Turquoise)

Amorphous Silica (SiO2) with trace metal oxides

Diamond (or Lab-Grown Cubic Zirconia)

Carbon (C)

Milky Quartz with inclusions

Quartz (Silicon Dioxide, SiO2)

Quartzite

Quartzite (primarily SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Obsidian

Volcanic Glass (predominantly SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartz (Milky or Rough Quartz)

Silicon Dioxide (SiO2)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Quartz (specifically Milky Quartz Pebble)

Silicon Dioxide (SiO2)

Blue Goldstone

Goldstone (artificial glass)

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Opalite (Man-made Glass)

Fused glass (typically made of dolomite and metal opacifiers)

Red aventurine

Silicon Dioxide (SiO2) with Hematite or Goethite inclusions

Quartz (Smoky or Clear variety with inclusions)

Silicon Dioxide (SiO2)

Quartz / Milky Quartz

Silicon Dioxide (SiO2)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz (specifically Clear Quartz or Rock Crystal)

Silicon Dioxide (SiO2)

Rose Quartz

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

Sandstone (likely with Quartz Veining)

Arenite (primarily SiO2)

Muscovite Mica (with Quartz)

Muscovite (KAl2(AlSi3O10)(OH)2)

Muscovite Mica

KAl2(AlSi3O10)(F,OH)2

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Quartz Vein (Iron-stained)

Silicon Dioxide (SiO2) with limonite/hematite staining

Green Aventurine

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

Mahogany Obsidian

Volcanic Glass with Hematite inclusions (SiO2 + Fe2O3)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite mica

Mica in Quartz Host

Muscovite (KAl2(AlSi3O10)(OH)2) in Quartz (SiO2)