Metamorphic (Likely Gneiss Or Schist Based On Texture)

Mica Schist

Foliated Metamorphic Rock (rich in Muscovite or Biotite)

Greenstone or Epidote-rich rock

Epidote or Chlorite schist/greenstone

Orthoclase Feldspar with Quartz

Orthoclase (KAlSi3O8)

Feldspar (Orthoclase)

Potassium Feldspar (KAlSi3O8)

Dumortierite Quartz

Al7BO3(SiO4)3O3 (Aluminum borate silicate)

Mica Schist

Mica Schist (contains Muscovite, Biotite, and Quartz)

Emerald in Schist (Raw/Tumbled)

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities in Mica Schist

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

River Quartzite Siltstone

Quartz-rich Meta-siltstone (SiO2 dominated)

Garnet in Matrix (likely Almandine in Quartz/Mica Schist)

Almandine Garnet (Fe3Al2(SiO4)3) in Quartz-Feldspar host rock

Emerald in Matrix

Beryl (Be3Al2(SiO3)6) with Chromium/Vanadium impurities

Chert (with Quartz Veining)

Microcrystalline Quartz (SiO2)

Greenstone

Protolith: Basaltic rock

Sandstone (Greywacke)

Arenite / Greywacke Sandstone

Chert (Jasper)

Microcrystalline Quartz (SiO2)

Mica Schist

Medium-grade regional metamorphic rock (composition varies)

Sandstone (with Moss/Lichen Growth)

Sandstone (Quartz Arenite / Lithic Arenite)

Sandstone (likely Greywacke or Siltstone variety)

Arenite / Siltstone (primarily SiO2)

Gneiss with Quartz/Feldspar Vein

Quartz-Feldspathic Gneiss

Yellow Quartzite Pebble

Quartzite (SiO2)

Sandstone (Ferruginous)

Arenite with Iron oxide staining (SiO2 with Fe2O3)

Sandstone

Arenite (SiO2 based typically)

Emerald in Matrix

Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities

Smoky Quartz

Smoky Quartz (Silicon Dioxide, SiO2)

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Quartz Vein in Host Rock

Silicon Dioxide (SiO2)

Carved Soapstone Alligator

Steatite (talc schist)

Jade

There are two distinct minerals commonly known as Jade: Jadeite (NaAlSi2O6) and Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2). Based on the appearance, these spheres are likely Nephrite.

Orthoclase Feldspar

K(AlSi3O8)

Smoky Quartz (with complementary stones in jewelry setting)

Smoky Quartz (Silicon Dioxide - SiO2)

Green Aventurine

Quartzite with Fuchsite (SiO2 + K(Al,Cr)2(AlSi3O10)(OH)2)

Quartz Pebble

Crystalline Silicon Dioxide (SiO2)

Granite (Weathered/Oxidized)

Phaneritic Felsic Igneous Rock (composed of Quartz, Orthoclase Feldspar, and Mica)

Green Aventurine (Tumbled Quartzite)

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Peach Aventurine

Silicon Dioxide (SiO2) with Hematite/Goethite inclusions

Biotite-bearing granite or granodiorite

Coarse-grained quartz–feldspar rock with biotite; approximate composition: quartz + plagioclase/K-feldspar + biotite ± hornblende

Painted River Rock

Painted Quartzite or Smooth Siltstone

Quartzite pebble

Quartzite (SiO2)

River Cobble (Mixed Lithology)

Clastic Sedimentary Rock (Silicified Siltstone or Wacke)

Blue Sapphire (in a faceted jewelry setting)

Corundum (Al2O3) with trace Iron and Titanium

Emerald in Matrix

Beryllium Aluminum Silicate (Be3Al2Si6O18) with Chromium/Vanadium impurities

Sandstone (lithic wake or graywacke)

Clastic sedimentary rock (primarily quartz and lithic fragments)