Igneous And Metamorphic Derivative (Weathered)

Clear Quartz Crystal

Silicon Dioxide (SiO2)

Pyrite (Fool's Gold)

Iron Sulfide (FeS2)

Clear Quartz

Silicon Dioxide (SiO2)

Muscovite Mica

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

Clear Quartz

Silicon Dioxide (SiO2)

Sodalite

Na8(Al6Si6O24)Cl2

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Sodalite

Sodium Aluminum Silicate Chloride (Na8(Al6Si6O24)Cl2)

Milky Quartz

Silicon Dioxide (SiO2)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Smoky Quartz

Silicon Dioxide (SiO2)

Muscovite on Quartz (Mica host rock)

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

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Blue Apatite

Apatite-(CaF), Ca5(PO4)3F

Pyrite in Matrix (Fool's Gold)

Iron Disulfide (FeS2)

Citrine Quartz Sphere

Silicon Dioxide (SiO2)

Clear Quartz Crystal

Quartz (Silicon Dioxide, SiO2)

Gold Mineral

Native Gold (Au)

Ruby (set in a gold pendant)

Ruby (Variety of Corundum, Al2O3)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Gneiss (Metamorphic Rock)

Gneiss

Gneiss

Gneiss (High-grade metamorphic rock)

Epidote (with Quartz and Feldspar)

Epidote (unakalite/unite), Ca2(Al2Fe3+)(SiO4)(Si2O7)O(OH)

Ferruginous Quartz (River Pebble)

Silicon Dioxide (SiO2) with Iron Oxide inclusions

Orange Quartz (Citrine Quartz)

Silicon Dioxide (SiO2)

Quartz (Microcrystalline/Macro crystalline variety)

Silicon Dioxide (SiO2)

Unakite

Epidotized Granite

Anyolite (Ruby in Zoisite)

Zoisite with inclusions of Hornblende and Ruby (Ca2Al3(SiO4)3(OH))

Chert (specifically Flint or Common Chert)

Silicon Dioxide (SiO2)

Chert (Yellow Jasper/Flint)

Silicon Dioxide (SiO2)

Sandstone (Quartz Arenite)

Sandstone (SiO2 with possible mineral cements)

Sandstone (Quartzite-rich)

Clastic sedimentary rock (primarily SiO2)

Quartz (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Turquoise

CuAl6(PO4)4(OH)8·4H2O

Obsidian (Apache Tear)

Amorphous Volcanic Glass (SiO2 + impurities)

Chert (Field Flint)

Microcrystalline Quartz (SiO2)

Quartz (specifically Milky/Gray Quartz vein)

Silicon Dioxide (SiO2)

Chert (specifically a flint nodule component)

Microcrystalline quartz (SiO2)