Man Made Glass (Often Grouped With Minerals In Lapidary)

Serpentinite

Serpentinite (composed largely of serpentine group minerals including Antigorite, Lizardite, or Chrysotile)

Yellow Jasper

Silicon Dioxide with Limonite/Goethite inclusions (SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Jasper

Quartz (SiO2) with impurities

Smoky Quartz (Tumbled)

Silicon Dioxide (SiO2)

Tourmaline (likely Schorl)

Tourmaline Group Mineral (e.g., Schorl for black varieties); (Na,Ca)(Li,Mg,Fe,Mn,Al)3Al6(BO3)3Si6O18(OH)4

Biotite Schist

Biotite Mica Schist (K(Mg,Fe)3AlSi3O10(OH,F)2)

Chert (specifically Yellow/Tan Chert)

Silicon Dioxide (SiO2)

Quartz Geode Fragment

Silicon Dioxide (SiO2)

Quartzite Pebble

Quartzite (SiO2)

Septarian Nodule (Dragon Stone)

Septarian concretion (Complex of Calcite, Aragonite, and Limestone/Clay)

Serpentine, likely a variety of Chrysoprase (green chalcedony) or a similar translucent green mineral.

Serpentine Group Minerals (e.g., Antigorite, Lizardite) or Chalcedony (SiO2) with nickel impurities for Chrysoprase green.

Quartz Pebble

Silicon Dioxide (SiO2)

Lapis Lazuli

Lazurite-rich metamorphic rock (approx. (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2)

Diamond (or Diamond Simulant)

Carbon (C)

Greenschist (Greenstone)

Greenschist

Sapphire (Raw/Rough)

Corundum (Al2O3)

Milky Quartz

Silicon Dioxide (SiO2)

Chalcedony (Botryoidal)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Aventurine (Green)

Aventurine Quartz (SiO2 + Fuchsite inclusions)

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Greenschist

Greenschist facies rock (containing chlorite, actinolite, albite, and epidote)

Quartz Pebble

Silicon Dioxide (SiO2)

Tree Agate

Dendritic Agate (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Quartzite

Quartzite (SiO2)

Conglomerate

Conglomerate (Clastic Sedimentary Rock)

Quartz (Translucent/Rose variety)

Silicon Dioxide (SiO2)

Greenstone (Greenschist facies)

Greenschist (composed primarily of Chlorite, Actinolite, and Epidote)

Turquoise (Blue Howlite / Magnesite imitation)

CuAl6(PO4)4(OH)8·4H2O (for natural Turquoise); Ca2B5SiO9(OH)5 (for Howlite)

Jasper (Banded Argillite/Chert mix)

Silicon Dioxide (SiO2) with iron oxide inclusions

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Chert (specifically Flint or Jasper variant)

Silicon Dioxide (SiO2)

Chert (or possibly Flint)

Chert (variant: Flint)

Rose Quartz

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

Jasper

Agate/Jasper (Microcrystalline Quartz, SiO2)

Rose Quartz

Silicon Dioxide (SiO2)

Smoky Quartz and Biotite Schist

Quartz-Biotite Schist (SiO2 + K(Mg,Fe)3AlSi3O10(F,OH)2)

Serpentine

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

Serpentine

Serpentine group minerals (e.g., Antigorite, Chrysotile, Lizardite). Chemical formula: (Mg, Fe)₃Si₂O₅(OH)₄

Smoky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)