Organic Gem Material (Botanical)

Moonstone (in a halo ring setting)

Orthoclase Feldspar (containing alternating layers of Albite), (KAlSi3O8)

Chert (Iron-stained)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Amber

Succinite (Formula: C10H16O)

Fossiliferous Shale

Carbonaceous Shale (with potential plant/aquatic fossils)

Red Jasper

Red Jasper (variety of Chalcedony, SiO₂)

Amethyst

Silicon dioxide (SiO2)

Amethyst (as a jewelry accent)

Amethyst (Silicon Dioxide SiO2 with Iron impurities)

Olivine in Basalt matrix

Olivine (Magnesium Iron Silicate - (Mg, Fe)2SiO4)

Corundum (Sapphire variant)

Aluminium oxide (Al2O3)

Tanzanite

Blue Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))

Garnet (likely Almandine)

Almandine - Fe3Al2(SiO4)3

Rough Diamond

Diamond (C)

Aura Quartz (Titanium or Angel Aura coated)

Silicon Dioxide (SiO2) with metallic vapor coating

Green Aura Quartz

Silicon Dioxide (SiO2) bonded with metallic vapors (typically Gold, Chromium, or Titanium)

Shale or Mudstone (Based on appearance)

Shale (fine-grained, laminated fissile sedimentary rock) / Mudstone (fine-grained, non-fissile sedimentary rock)

Blue Apatite

Apatite, Ca5(PO4)3(F,Cl,OH)

Basalt with Peridotite (Olivine) Xenolith

Olivine-rich Peridotite (Dunite) xenolith in Vesicular Basalt; chemical formula (Mg,Fe)2SiO4

Moonstone

Orthoclase (Potassium Feldspar) - (K,Na)AlSi3O8

Blue Apatite

Apatite group (Ca5(PO4)3(F,Cl,OH))

Potassium Feldspar (Orthoclase)

KAlSi3O8

Ferruginous Quartz (Stained Quartz)

Silicon Dioxide (SiO2) with secondary Iron Oxide inclusions (Limonite/Hematite)

Limestone (specifically Bituminous or Carbonaceous Limestone)

Calcium Carbonate (CaCO3) with Organic Impurities

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Cubic Zirconia (Jewelry Setting)

Cubic Zirconia (ZrO2)

Amber

Succinite (with empirical formula approximately C10H16O)

Chrome Diopside

Diopside (Magnesium Calcium Silicate) - CaMgSi2O6 + Cr

Amethyst (Variety of Quartz)

Silicon Dioxide (SiO2)

Red Jasper (Chert)

Silicon Dioxide (SiO2) with iron oxide inclusions

Amethyst

Silicon Dioxide (SiO2) with iron impurities

Amethyst (Faceted)

Amethyst (Silicon Dioxide with iron impurities, SiO2)

Aquamarine

Beryl (Be3Al2Si6O18)

Amethyst (Rough Quartz)

Silicon Dioxide (SiO2) with iron impurities

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz Geode Cluster

Silicon Dioxide (SiO2)

White Chalcedony (likely Common Opal or Milky Quartz)

Silicon Dioxide (SiO2)

Red Jasper

Silicon Dioxide (SiO2) with Hematite (Fe2O3) impurities

Jasper

Silicon Dioxide (SiO2) with iron oxide impurities

Moonstone (Feldspar)

Orthoclase/Albite ((K,Na)AlSi3O8)

Amethyst in Matrix

Silicon Dioxide with Iron Impurities (SiO2)

Amethyst

Amethyst (Silicon Dioxide, SiO2)

Amethyst

Silicon Dioxide (SiO2) with iron impurities