Metamorphic Rock (For Both Nephrite And Jadeite)

Granodiorite (or Granite) Pebble

Phaneritic Felsic Igneous Pebble

Quartz (Milky/Smoky variety)

Silicon Dioxide (SiO2)

Pyrite

Iron Pyrite (FeS₂)

Herkimer Diamond

Quartz (SiO2)

Schorl (Black Tourmaline)

Sodium Iron Aluminum Borosilicate Hydroxide; NaFe2+3Al6Si6O18(BO3)3(OH)3OH

Quartz (Milky/Clear variety)

Silicon Dioxide (SiO2)

Aquamarine with Sunstone

Aquamarine (Be3Al2Si6O18), Sunstone (Na,Ca)Al(Si,Al)Si2O8

Quartz (Milky/Smoky variety on matrix)

Silicon Dioxide (SiO2)

Pyrite

Iron Pyrite (FeS2)

Schorl (Black Tourmaline) in Quartz Matrix

Schorl: NaFe3Al6(BO3)3Si6O18(OH)4 (Complex Borosilicate)

Quartz (Druzy or Geode fragment)

Silicon Dioxide (SiO2)

White Jade (Mutton Fat Jade / Nephrite)

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

Herkimer Diamond

Double-Terminated Quartz (SiO2)

Quartz

Silicon Dioxide (SiO₂)

Quartz (Iron-stained or Rose variant)

Silicon Dioxide (SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Herkimer Diamond

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Double Terminated)

Silicon Dioxide (SiO2)

Quartz (specifically Milky or Clear Quartz fragment)

Silicon Dioxide (SiO2)

Green Aventurine and Clear Quartz

Aventurine (variety of Quartz - SiO2) and Quartz (SiO2)

Obsidian

Obsidian (Volcanic Glass), primarily SiO2 (Silicon Dioxide)

Fossil Shell (Bivalve)

Class Bivalvia (Likely a member of the Ostreidae or Gryphaeidae family), CaCO3

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide inclusions (Hematite/Goethite)

Pyrite

Pyrite (FeS2)

Black Tourmaline

Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)

Amphibolite

Amphibolite

Black Tourmaline (Schorl)

Schorl (Sodium Iron Aluminum Borosilicate Hydroxide), NaFe2+3Al6Si6O18(BO3)3(OH)3OH

Tiger's Eye (Blue-Gold transition)

Pseudomorph of Quartz after Crocidolite (SiO2)

Obsidian

Obsidian (principally SiO2)

Quartz (River Pebble)

Quartz (Silicon Dioxide, SiO2)

Obsidian

Obsidian (Volcanic Glass, primarily SiO2)

Black Tourmaline

Schorl (Sodium Iron Aluminum Borosilicate Hydroxide); NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)

Chert / Flint

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Obsidian

Volcanic glass (mainly SiO2)

Chert (Nodular)

Chert (SiO2 - Microcrystalline Quartz)

Rough Quartz (with potential Host Rock)

Silicon Dioxide (SiO2)

Mica Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Turquoise

Turquoise - CuAl6(PO4)4(OH)8·4H2O

Yellow Jade (Nephrite or Quartzite variety)

Ca2(Mg,Fe)5Si8O22(OH)2 (Nephrite) / SiO2 (Quartzite variant)

Quartz

Quartz (SiO₂)