Man Made Material (Anthro Lithic Product)

Diamond

Native Carbon (C)

Serpentine

Antigorite / Lizardite / Chrysotile (Mg, Fe, Ni, Al, Zn, Mn)2-3(Si, Al, Fe)2O5(OH)4

Serpentine

Serpentinite (complex of Mg, Fe, Ni, Al, Zn, Mn)Si2O5(OH)4

Petrified Wood

Silicified Wood (primarily SiO2)

Olivine (Peridotite)

Magnesium Iron Silicate - (Mg, Fe)2SiO4

Basalt

Basalt (Mafic volcanic rock)

Sandstone (Weathered Pebble)

Arenite (primarily SiO2)

Olivine (Peridotite)

Olivine Group; (Mg, Fe)2SiO4

Diamond

C (Carbon)

Chert (Yellow Jasper variant)

Silicon Dioxide (SiO2)

Fluorite

Fluorite (Calcium Fluoride - CaF2)

Orange Calcite

Calcium Carbonate (CaCO3)

Fossiliferous Chert (with Fossil Shells)

Silicon Dioxide (SiO2) with biogenic inclusions

Rose Quartz (likely carved)

Rose Quartz (SiO2)

Yellow Chert or Jasper

Silicon Dioxide (SiO2)

Wood Paneling

Engineered Wood / Plywood Paneling

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)

Mookaite Jasper

Silicified Radiolarite (Silicon Dioxide: SiO2)

Limonite (Iron Ore)

Limonite (Hydrous iron(III) oxide-hydroxide mixture, primarily FeO(OH)·nH2O)

Milky Quartz with Mineral Inclusions

Quartz (Silicon Dioxide - SiO2)

Brown Jasper (Likely)

Jasper (Cryptocrystalline Silicon Dioxide - SiO2)

Amazonite

KAlSi3O8 (Potassium Feldspar, variety of Microcline)

Rhodonite

Rhodonite (Manganese Silicate), (Mn,Fe,Mg,Ca)SiO3

Olivine (Peridot)

Magnesium Iron Silicate (Mg, Fe)2SiO4

Pink Rhodonite

Manganese Silicate (MnSiO3)

Olivine (Peridot when gem-quality)

Magnesium Iron Silicate, (Mg,Fe)2SiO4

Basalt

Mafic Igneous Rock (composed primarily of Pyroxene and Plagioclase Feldspar)

Red Sandstone

Arenite (Ferruginous Sandstone)

Chert (Field Stone)

Chert (Silicon Dioxide, SiO2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2)

Sandstone

Arenite (SiO2 primarily)

Sandstone

Arenite (composed primarily of SiO2)

Sandstone (Quartzose)

Arenite (primarily SiO2)

Sandstone (likely Arkosic or Quartzose)

Sandstone (SiO2 dominated)

Quartzite

Quartzite (SiO2)

Sandstone

Clastic sedimentary rock (primarily SiO2)

Sandstone (Quartz Arenite)

Sandstone (Chemical formula: primarily SiO2)

Sandstone (Quartz Arenite)

Sandstone (SiO2 with possible mineral cements)

Milky Quartz

Silicon Dioxide (SiO2)

Sandstone

Arenite (SiO2 based with quartz grains)

Sandstone (likely Red/Brown Sandstone)

Arenite (SiO2 based)

Quartzite (or Milky Quartz pebble)

Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)