Mineralogical Simulant

Mixed River Pebbles (Jasper, Hematite, and Quartzites)

Silicon dioxide (Jasper/Quartz) and Iron oxide (Hematite)

Polished greenstone pebble (likely serpentine or chlorite-rich stone)

Serpentine-group minerals, commonly antigorite/lizardite; possible chlorite-rich metamorphic rock

Rhyolite

Extrusive Felsic Igneous Rock

Faceted colorless gemstone, likely glass or diamond imitation

Unidentified; possibly diamond (carbon, C) or cubic zirconia (zirconium dioxide, ZrO₂)

Diamond (or Cubic Zirconia)

Crystallized Carbon (C) for Diamond; Zirconium Dioxide (ZrO2) for CZ

Diamond (or Diamond Simulant)

Carbon (C) if diamond, various if simulant (e.g., Cubic Zirconia - ZrO2, Moissanite - SiC)

Clear Quartz (faceted) / Diamond Simulant

Silicon Dioxide (SiO2) / Cubic Zirconia (ZrO2)

Diamond (or Diamond Simulant)

Carbon (C) or Cubic Zirconia (ZrO2)

Quartz-rich breccia or vein quartz with iron staining

Microcrystalline to crystalline SiO₂, likely quartz with iron oxides/hydroxides and altered host rock

Greenstone / altered mafic rock

Likely chlorite–actinolite schist or metabasalt; exact identification requires testing

Ruby (Faceted)

Corundum (Al2O3:Cr)

Granite

Granite (Plutonic Igneous Rock)

Granite

Granite (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)

Granite

Phaneritic plutonic rock (approx. 20-60% quartz, 35-90% feldspar)

Pink Granite

Potassium Feldspar-Rich Granite

Granite

Granite (Alkali-feldspar, Quartz, and Plagioclase composition)

Granite

Granite (phaneitic intrusive igneous rock)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Granodiorite

Granodiorite (Intermediate intrusive igneous rock)

Granite Gneiss

Felsic Gneiss (composed of Quartz, Feldspar, and Biotite)

Diorite

Diorite (Intermediate intrusive igneous rock)

Weathered iron-rich rock (likely ironstone or limonite-bearing concretion)

Goethite–hematite–limonite mixture, commonly written FeO(OH) ± Fe₂O₃

Dalmatian jasper

Spotted rhyolite (commercially called Dalmatian jasper), chiefly quartz and feldspar with black aegirine/arfvedsonite inclusions

Small tumbled blue-green stone, possibly chrysocolla or turquoise

Indeterminate copper-bearing mineral; possible chrysocolla (Cu₂H₂Si₂O₅(OH)₄·nH₂O) or turquoise (CuAl₆(PO₄)₄(OH)₈·4H₂O)

Greenstone / Serpentinite

Serpentinite (complex of Mg, Fe, Ni, Al, Zn, Mn silicate minerals including Antigorite, Lizardite, and Chrysotile)

Colorless faceted gemstone, likely cubic zirconia

Synthetic cubic zirconia (zirconium dioxide, ZrO₂); identity is visual and not definitive

Serpentinite

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

Blue-gray tumbled stone, likely sodalite

Sodalite, Na₈(Al₆Si₆O₂₄)Cl₂; identification is tentative from the photograph

Blue copper-mineral rock, likely chrysocolla-bearing copper ore

Chrysocolla (hydrated copper aluminosilicate), possibly with malachite, quartz, or host rock

Polished ruby-in-zoisite (anyolite), likely

Ruby-bearing zoisite: zoisite Ca₂Al₃(SiO₄)₃(OH), with corundum Al₂O₃ and commonly amphibole

Green-and-gold apatite-bearing rock, possibly epidote skarn

Apatite-group mineral, commonly fluorapatite (Ca₅(PO₄)₃F), with probable epidote and quartz; exact identification requires testing

Polished orbicular jasper (likely kambaba or ocean jasper)

Silicified microcrystalline quartz/chalcedony with iron-rich inclusions; mainly SiO₂

Faceted citrine-colored gemstone

Likely citrine (quartz, SiO₂); possibly yellow glass or synthetic gem

Greenstone / Glauconitic Siltstone

Metabasalt or Glauconite-rich Sedimentary Rock

Diamond (or Diamond Simulant)

Carbon (C)

Small rounded pebble

Indeterminate lithic clast; likely weathered quartzite, sandstone, or chert

Colorless faceted gemstone (most likely synthetic cubic zirconia)

Cubic zirconia, ZrO₂ (likely synthetic); natural alternatives include quartz or diamond

Blue Howlite (Dyed)

Calcium Borosilicate Hydroxide (Ca2B5SiO9(OH)5)

Serpentine

Serpentine group, including Antigorite, Lizardite, and Chrysotile (Mg,Fe,Ni,Al,Zn,Mn)2-3(Si,Al,Fe)2O5(OH)4

Tumbled lepidolite-rich pegmatite (probable)

Lepidolite, K(Li,Al)3(Si,Al)4O10(F,OH)2, in a granitic pegmatite matrix

Diamond (or Diamond Simulant)

Carbon (C)

Diamond (or synthetic simulant)

Cubic C (Carbon)