Sedimentary And Metamorphic

Unakite

Epidotized Granite

Quartzite (River Pebble)

SiO2 (recrystallized Quartz)

Quartzite with Iron Inclusions

Metamorphosed Sandstone (SiO2 dominated)

Quartzite Pebble

Quartzite (primarily SiO2)

Quartzite

Quartzite (primarily SiO2)

Dragon Blood Jasper

Epidote-rich Quartzite (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))

Quartzite

Quartzite (primarily SiO2)

Schist with Garnet inclusions

Garnet-mica-schist

Unakite (Tumbled)

Epidotized Granite

Unakite

Unakite (Epidotized Granite)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (SiO2)

Serpentinite

Serpentinite (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Quartz on Greenstone

Silicon Dioxide (SiO2) on Altered Igneous Geologic Unit

Quartzite

Quartzite (SiO2)

Unakite

Epidotized Granite

Green Quartzite (with possible Epidote/Chlorite inclusions)

Quartzite (primarily SiO2)

Tiger's Eye (Blue/Golden mix)

Pseudomorph of Quartz after Crocidolite (SiO2)

Lapis Lazuli

Na8(Al6Si6O24)S2 (Lazurite is the primary constituent mineral)

Nephrite Jade (River Bed Pebble)

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

White Jade (Nephrite or Jadeite)

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2

Tiffany Stone

Fluoritized Opal Beryllium Ore (principally Bertrandite, Be4Si2O7(OH)2)

Lepidolite in Quartz (Obelisk)

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

Quartzite

Quartzite (primarily SiO2)

Petrified Wood

Silicified Wood (SiO2)

Ferruginous Quartzite (Red Sandstone/Quartzite)

Quartzite with Iron inclusions (SiO2 + Fe2O3)

Quartzite

Quartzite (SiO2)

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Anthracite Coal

Anthracite

Green Aventurine (Quartzite)

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

Petrified Wood

Silicified Wood (SiO2)

Quartzite pebble

Quartzite (SiO2)

Quartzite (Milky)

Quartzite (SiO2)

Quartzite (River Pebble)

Quartzite (Mainly SiO2)

Quartzite River Rock

Quartzite (SiO2)

Quartzite

Quartzite (primarily SiO2)

Schist

Mica Schist (formula variable based on mineral content, typically containing [K,Al,Fe,Mg,Si,O,H])

Mixed Tumbled Gemstones (Agate, Aventurine, Pyrite, etc.)

Multiple (principally Silicon Dioxide SiO2 and Iron Disulfide FeS2)

Flesh-toned Siltstone

Siltstone (composed of microscopic Quartz and Feldspar grains)

Stilbite

Stilbite-Ca (NaCa4Mg[Al9Si27O72]·28H2O)

Rhodochrosite in Quartz

Manganese Carbonate (MnCO3)