Mineral (Organic Gemstone)

Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Dalmation Stone

Peralkaline Rock (mixed silicate minerals)

Chert (variations include Flint/Chalcedony)

Chert (SiO2 - Silicon Dioxide)

Quartz Geode/Druzy Quartz

Quartz (SiO₂)

Nuummite

Nuummite (Orthoamphibole rock / Anthophyllite-Gedrite blend)

Connemara Marble

Ophiocalcite (Serpentinitic Marble)

Quartz Pebble

Silicon Dioxide (SiO2)

Diamond (or Cubic Zirconia simulant)

Carbon (C) - Diamond / Zirconium dioxide (ZrO2) - CZ

Amygdaloidal Basalt

Basalt with secondary mineral infilling

Botryoidal Chalcedony

Chalcedony (SiO2)

Shale or Argillite

Shale (sedimentary) / Argillite (metamorphic)

Quartz (River Pebble)

Silicon Dioxide (SiO2)

Obsidian

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

Aura Quartz

Titanium-coated Silicon Dioxide (SiO2)

Carnelian (Chalcedony)

Silicon Dioxide (SiO2)

Carnelian (Orange Chalcedony)

Silicon Dioxide (SiO2) - variety of Chalcedony

Black Tourmaline

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

Amethyst

SiO2 (Silicon Dioxide) - Purple variety of Quartz

Honey Calcite

Calcite (Calcium Carbonate, CaCO3)

Quartz (Chert/Chalcedony variety)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Quartz

Silicon Dioxide (SiO2)

Clear Quartz (Double Terminated)

Silicon Dioxide (SiO2)

Olivine (likely Peridot variety)

Olivine Mineral Group (specifically Forsterite-Fayalite solid solution series); Chemical formula: (Mg,Fe)2SiO4

Sunstone (variety of Feldspar)

Oligoclase Sunstone, Plagioclase Feldspar (Na,Ca)Al(Si,Al)Si2O8

Quartz

Quartz (SiO₂)

Jade (Nephrite or Jadeite)

Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2 (amphibole mineral); Jadeite: NaAlSi2O6 (pyroxene mineral)

Jasper (specifically Brecciated or Agated Jasper)

Silicon Dioxide (SiO2) - Chalcedony with impurities

Blue Quartzite (Blue Aventurine / Dumortierite Quartz)

Quartzite with inclusions (SiO2 with AlAl4BSi3O18)

Jasper

Jasper (Silicon Dioxide, SiO2)

Quartzite

Quartzite (primarily SiO2)

Black Tourmaline

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Diopside (likely Chromian Diopside)

Diopside, part of Clinopyroxene family of inosilicates. Chemical formula: CaMgSi2O6. The green variety is often Chromian Diopside due to chromium impurities.

Peridot

Olivine (specifically, the gem-quality variety forsterite, (Mg,Fe)2SiO4)

Granitic Pegmatite

Granite Pegmatite (principally KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)

Granitic Pegmatite

Granitic Pegmatite (principally Quartz, Feldspar, and Mica)

Peridot

Olivine (specific variety: gem-quality forsterite), (Mg,Fe)2SiO4

Diamond (Macled/Crystal fragment)

Carbon (C), isometric crystal system

Rhodonite with Manganese Oxides

Rhodonite (Mn,Fe,Mg,Ca)SiO3

Quartz (Rose or Milky variety fragment)

Silicon Dioxide (SiO2)

Garnet (specifically Almandine)

Almandine - Fe3Al2(SiO4)3