Man Made Glass Mineral Simulant

Black Obsidian

Volcanic glass

Obsidian

Volcanic Glass

Quartzite Pebble (River Rock)

Quartzite (SiO2)

Fluorite (likely Green Fluorite variant)

Calcium Fluoride (CaF2)

Chrysocolla and Malachite Beads

Hydrated copper silicates (Chrysocolla) and Copper carbonate hydroxide (Malachite)

Feldspar (Orthoclase)

Orthoclase Feldspar (KAlSi3O8)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Orthoclase Feldspar with Quartz

Orthoclase (KAlSi3O8)

Quartz (Iron-stained)

Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2) with Limonite/Goethite

Quartz

Silicon Dioxide (SiO2)

Quartz with Associated Minerals

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Likely quartz-rich mineral fragment

Quartz (SiO₂), possibly iron-stained or included quartz

Blue Apatite

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

Actinolite (likely fibrous amphibole)

Actinolite, Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂; possibly an actinolite–tremolite specimen

Obsidian

Volcanic Glass (predominantly SiO2)

Green Aventurine and Clear Quartz Bracelet

Quartz variety with Fuchsite inclusions (Aventurine) and pure Silicon Dioxide (SiO2)

Quartz-rich breccia or vein quartz fragment

Quartz (SiO₂), likely with iron-oxide staining and attached host rock

Obsidian

Volcanic Glass (Amorphous Silica)

Quartz Vein (Iron-stained)

Silicon Dioxide (SiO2) with limonite/hematite staining

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Quartz

Silicon Dioxide (SiO2)

Likely weathered quartz or quartz-rich pebble

Quartz, silicon dioxide (SiO₂)

Muscovite

Muscovite (KAl2(AlSi3O10)(OH)2)

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

Fluorite

Calcium Fluoride (CaF2)

Ruby (Raw Corundum)

Alumina (Al2O3) with Chromium traces

Quartz with Orthoclase Feldspar

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

Milky Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Potassium Feldspar (Orthoclase)

Orthoclase (KAlSi3O8)

Obsidian

Volcanic glass

Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Fluorite

Calcium Fluoride (CaF2)