Mineral (Man Modified)

Amazonite

KAlSi3O8 (Potassium Feldspar, variety of Microcline)

Rose Quartz

Rose Quartz (SiO2)

Quartz

Quartz (SiO2)

Quartz

Quartz (SiO2 - Silicon Dioxide)

Banded Gneiss

Gneiss (pronounced "nice")

Pyrite

Iron Pyrite (FeS₂)

Blue Quartzite

Quartzite (specifically a variety enriched with blue-coloring minerals)

Granite Cobble

Phaneritic Plutonic Felsic Rock

Water and Silt (Sedimentary Environment)

Suspended Sediment / H2O (dihydrogen monoxide)

Mica Schist

Foliated Metamorphic Rock (rich in Muscovite or Biotite)

Limonite (Iron Ore)

Limonite (an FeO(OH)·nH2O mineraloid, not a true mineral due to variable composition)

Epidote with Quartz and Feldspar

Ca2(Al2,Fe3+)(SiO4)3(OH) (Epidote complex)

Seraphinite

Clinochlore (a variety of the chlorite group)

Quartz Druzy Geode

Silicon Dioxide (SiO2) - Crystalline Variety

Jasper with Quartz inclusion

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Limonite (Iron Ore/Hydrated Iron Oxide)

Limonite (mixture of FeO(OH)·nH₂O minerals, mainly Goethite, FeO(OH) and Lepidocrocite, FeO(OH))

Quartz

Silicon Dioxide (SiO2)

Amethyst

Amethyst (SiO₂)

Quartz (likely Rose Quartz or Milky Quartz based on color)

Quartz (SiO2 - Silicon Dioxide)

Quartz

Quartz (SiO₂ - Silicon Dioxide)

Botryoidal Chalcedony

Chalcedony (SiO2)

Schorl (Black Tourmaline) in Quartz or Feldspar Matrix

NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl) in Granitic Pegmatite

Quartz

Quartz (SiO₂ - Silicon Dioxide)

Malachite

Malachite (Cu2CO3(OH)2)

Diamond

Diamond (pure carbon; C)

Turquoise (beads)

Turquoise; CuAl6(PO4)4(OH)8·4H2O

Quartz (likely macrocrystalline variety)

Quartz (SiO₂)

Smoky Quartz

SiO2 (Silicon Dioxide)

Calcite

Calcite (Mineral, Calcium Carbonate - CaCO3)

Quartz

Quartz (SiO₂)

River Cobble (Phyllite or Quartzite)

Metasedimentary Rock (often containing SiO2 or KAl2(AlSi3O10)(OH)2)

Quartz

Quartz (SiO₂)

Quartz (likely a form of massive or vein quartz)

Quartz (SiO₂)

Magnetic Hematite

Magnetized Hematite (an iron oxide mineral, Fe2O3, that has undergone magnetization)

Green Aventurine and Clear Quartz

Aventurine (variety of Quartz - SiO2) and Quartz (SiO2)

Garnet Schist

Almandine Garnet-Mica Schist (X₃Y₂(SiO₄)₃)

Rose Quartz

Silicon Dioxide (SiO2) with trace Titanium, Manganese, or Iron

Sandstone

Sandstone (lithified sand)

Serpentinite (Serpentine Rock)

Serpentinite is a rock composed of one or more serpentine group minerals, chiefly antigorite, chrysotile, and lizardite, with the general formula (Mg,Fe)3Si2O5(OH)4. Often includes other minerals like magnetite, talc, and chromite.

Gneiss

Gneiss (High-grade regional metamorphic rock)

Serpentine

Serpentinite (a rock composed primarily of serpentine minerals like antigorite, chrysotile, and lizardite; general formula (Mg, Fe)3Si2O5(OH)4)

Pyrite

Pyrite (FeS2)