Granite

Schist (specifically Mica Schist)

Mica Schist (primarily composed of Muscovite KAl2(AlSi3O10)(OH)2 and Biotite)

Schist

Mica Schist (primarily Muscovite or Biotite sheet silicates)

Diamond (or Diamond Simulant like Cubic Zirconia)

Carbon (C) - if Diamond; Zirconium dioxide (ZrO2) - if Cubic Zirconia

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (primarily SiO2)

Schist

Mica Schist

Garnet (almandine or pyrope variety)

Silicate mineral Group: (Fe, Mg, Mn, Ca)3(Al, Fe, Cr)2(SiO4)3

Conglomerate

Conglomeratic Sandstone / Sedimentary Breccia

Quartzite

Quartzite (primarily SiO2)

Schist

Mica Schist

Pink Quartzite

Quartzite (primarily SiO2 with trace impurities of iron oxides)

Peacock Ore (Bornite/Chalcopyrite)

Bornite (Cu5FeS4) or Chalcopyrite (CuFeS2)

Bicolor Tanzanite

Zoisite (Ca2Al3(SiO4)3(OH))

Glauconite

(K,Na)(Fe3+,Al,Mg)2(Si,Al)4O10(OH)2

Quartzite

Quartzite (Primary mineral: Silicon Dioxide, SiO2)

Quartzite

Quartzite (SiO2)

Arsenopyrite

Arsenopyrite (FeAsS)

Quartzite

Quartzite (primarily SiO2)

Schist

Mica Schist (primarily Muscovite and Quartz)

Gold and Diamond

Native Gold (Au) and Diamond (C)

Diamond

Diamond (C)

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Vesicular Basalt

Extrusive Basalt (Mafic Silicate)

Vesicular Basalt with Quartz/Chalcedony

Vesicular Basalt (primarily Plagioclase, Pyroxene, and Olivine with SiO2 infill)

Quartzite

Quartzite (Primary mineral: SiO2)

Diamond

C (Carbon)

Agate Nodule (partially vuggy Quartz)

Silicon Dioxide (SiO2)

Bornite (Peacock Ore)

Bornite (Copper iron sulfide - Cu5FeS4)

Amygdaloidal Basalt

Basalt with secondary mineral infilling

Gold Ore

Auriferous Quartz and Sulfide Mineralization in Host Rock

Jadeite and Assorted Corundum (Ruby/Sapphire) / Beryl (Emerald)

Jadeite (NaAlSi2O6), Ruby/Sapphire (Al2O3), Emerald (Be3Al2(SiO3)6)

Vesicular Basalt (Amygdaloidal)

Amygdaloidal Basalt (Mafic volcanic rock)

Diamond

Carbon (C)

Barite Rose on Marcasite

Barium Sulfate (BaSO4) on Iron Sulfide (FeS2)

Basalt with Iron Oxidation

Extrusive Mafic Igneous Rock (composed of Plagioclase and Pyroxene)

Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)

Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement

Psilomelane (Manganese Ore)

Psilomelane (Ba,H2O)2Mn5O10

Basalt (Weathered)

Extrusive mafic volcanic rock

Basalt with Iron Oxidation (Lattice/Veined)

Mafic Volcanic Rock (principally Plagioclase and Pyroxene)

Rough Corundum (Sapphire/Ruby mixture)

Corundum (Aluminum Oxide, Al2O3)

Ironstone with Limonite/Goethite coating

Ferruginous Sedimentary Rock (contains Limonite FeO(OH)·nH2O)