Man Made Material (Jewelry, Metal Alloy)

Red Jasper

Quartz (Silicon Dioxide) with Hematite inclusions, SiO2

White Jade (Nephrite or Jadeite)

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

Petrified Wood

Silicified wood (SiO2 - Silicon Dioxide)

Jasper

Jasper (Silicon Dioxide, SiO2)

Petrified Wood

Silicified Wood (SiO2)

Diamond (or Cubic Zirconia simulant)

Carbon (C) or Zirconium Dioxide (ZrO2)

Pyrite

Iron Disulfide (FeS2)

Dragon Blood Jasper (Lizard Stone/Septarian Chalcedony)

Epidote with Black Hornblende and White Quartz mixture

Chrysocolla (with Quartz and Azurite)

Hydrated copper phyllosilicate mineral [Cu2-xAlx(H2-xSi2O5)(OH)4·n(H2O)]

Jasper

Silicon dioxide (SiO2)

Dalmation Stone (Dalmation Jasper)

Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)

Chert (and Flint variant)

Microcrystalline Quartz (SiO2)

Blue Aragonite

Aragonite (Calcium Carbonate, CaCO3)

Citrine

Silicon Dioxide (SiO2)

Chert (Chert Nodule)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Flint (Chert)

Silicon Dioxide (SiO2)

Coral Fossil (Scleractinia)

Scleractinia (Order), primarily CaCO3 (Aragonite or Calcite)

Tiger's Eye

SiO2 (Silicon Dioxide with Iron Oxide inclusions)

Polished Ocean Jasper

Orbicular Jasper (variety of Chalcedony/Quartz, SiO2)

Petrified Wood

Silicified wood (principally Silicon Dioxide, SiO2)

Chert (Jasper/Flint variety)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (varieties: Flint or Chalcedony)

Microcrystalline silica (SiO2)

Chert (varieties include Jasper or Flint)

Chert (Microcrystalline Silica, formula: SiO2)

Petrified Wood

Silicified wood (principally SiO2)

Obsidian Arrowhead

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

Chert (varietal Flint)

Silicon Dioxide (SiO2)

Chondrite Meteorite

Stony Meteorite (L, H, or LL Chondrite)

Diamond (Macled/Crystal fragment)

Carbon (C), isometric crystal system

Petrified Wood

Silicified Wood (SiO2)

Wood Beads (Palmwood/Ebony)

Various species for wood, but often refers to woods like Palmwood (e.g., Borassus flabellifer) or Ebony (Diospyros spp.) for their distinctive grain and hardness.

Green Moss Agate

Silicon Dioxide with inclusions (SiO2)

Rose Quartz

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

Serpentine

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

Bloodstone

Heliotrope (cryptocrystalline Quartz, SiO2 with inclusions of Hematite)

Chert (Jasper/Quartzite river stone)

Microcrystalline Silicon Dioxide (SiO2)

Diorite (Salt and Pepper Rock)

Diorite

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Obsidian

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

Indigo Gabbro

Gabbro (Mafic Intrusive Rock)

Chert (varieties: Flint or Jasper)

Microcrystalline Quartz (SiO2)

Yellow Quartzite

Quartzite (SiO2)

Quartz (specifically Milky or Clear Chunk)

Silicon Dioxide (SiO2)