Mineral, Often Found As A Rock (Metamorphic)

Epidote

{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Quartzite (River-worn pebble)

Quartzite (Mainly SiO2)

Native Gold Nugget

Native Gold (Au)

Quartzite

Quartzite (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Gold Ore (in Quartz/Pyrite)

Native Gold (Au) with Quartz (SiO2) and Pyrite (FeS2)

Fuchsite Schist

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2) in Schist

Labradorite

Labradorite (a variety of Plagioclase Feldspar), Na(AlSi3O8) to Ca(Al2Si2O8)

Gneiss

High-grade Metamorphic Gneiss

Sandstone or Limestone

Arenite or Calcareous Sedimentary Rock

Milky Quartz with Mineral Inclusions

Silicon Dioxide (SiO2) with miscellaneous inclusions

Quartz (Citrine or Iron-Stained)

Silicon Dioxide (SiO2)

Serpentine

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

Quartz (Raw Rose and Milky varieties)

Silicon Dioxide (SiO2)

Sandstone (Quartzite Pebble)

Arenite (primarily SiO2)

Blue Quartz

Quartz (Silicon Dioxide) with blue inclusions (SiO2)

Quartzite

Quartzite (primarily SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Sandstone

Sandstone (arenite is a more specific geological term for a clean sandstone, while wacke refers to a dirty sandstone with significant matrix)

Gneiss with Orthoclase Feldspar

Gneissic Metamorphic Rock with K-Feldspar inclusions

Fuchsite (Green Muscovite in Quartz)

K(Al,Cr)2(AlSi3O10)(OH)2 - Chromium-rich Muscovite

Garnet Schist

Almandine Garnet Schist

Citrine

Silicon dioxide (SiO2)

Magnetite (Iron Ore)

Magnetite (Fe3O4)

Jade (Jadeite/Nephrite)

NaAlSi2O6 (Jadeite) / Ca2(Mg,Fe)5Si8O22(OH)2 (Nephrite)

Rough Green QuartzITE / Green Aventurine

Aventurine Quartz (SiO2 + Cr-muscovite inclusions)

Copper Ore (likely Chalcopyrite in Matrix)

Chalcopyrite (CuFeS2)

Quartzite River Rock

Quartzite (primarily SiO2)

Biological Bone (Patella/Knee)

Patella (part of the Human Skeletal System)

Mica Schist

Schist (Biotite/Muscovite rich)

Limonite (after Pyrite Pseudomorph)

Limonite (Hydrated Iron Oxide Mixture, FeO(OH)·nH2O)

Collection of Minerals and Ores

Various (e.g., Uraninite (U3O8), Carbon (C), Native Gold (Au), Hematite (Fe2O3), Galena (PbS), etc.)

Pyrite

Iron Sulfide (FeS2)

Quartz (Citrine or Iron-Stained variety)

Silicon Dioxide (SiO2)

Giallo Ornamental Granite

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

Gneiss

Gneiss (high-grade metamorphic rock typically composed of quartz, feldspar, and mica)

Quartz (Milky/Vein Quartz)

Silicon Dioxide (SiO2)

Quartzite

Quartzite (Primary mineral: SiO2)

Quartzite

Quartzite (primarily SiO2)

Specular Hematite (Specularite)

Iron Oxide (Fe2O3)