Igneous And Mineral

Rough Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Arfvedsonite in Quartz

Arfvedsonite [Na3(Fe2+4Fe3+)Si8O22(OH)2] often hosted in Quartz or Feldspar

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Moonstone

Orthoclase Feldspar ((K,Na)AlSi3O8)

Amethyst and Peridot

Amethyst (SiO2 with iron impurities) and Peridot ((Mg, Fe)2SiO4)

Greenstone

Greenschist (metamorphosed mafic igneous rock)

Granite

Phaneritic Felsic Igneous Rock

Granite

Phaneritic intrusive igneous rock

Orthoclase Feldspar

KAlSi3O8 (Potassium Aluminum Silicate)

Quartz in Matrix (possibly with Biotite or Hornblende)

Quartz (Silicon Dioxide, SiO2) in Granitic Matrix

Vesicular Basalt with Lichen

Vesicular Basalt

Blue Apatite

Apatite-(CaF), Ca5(PO4)3F

Epidote (likely Unakite component or Epidosite)

Epidote (Ca2(Al2Fe)(SiO4)(Si2O7)O(OH))

Chalcedony (specifically Agate or Carnelian variety)

Cryptocrystalline Silica (SiO2)

Blue Apatite

Apatite - Ca5(PO4)3(F,Cl,OH)

Gneiss (Banded Gneiss)

Gneiss

Blue Calcite

Calcium Carbonate (CaCO3)

Quartz (Milky Quartz with Iron Staining)

Silicon Dioxide (SiO2)

Amethyst

Quartz (Silicon Dioxide with Iron impurities), SiO2

Pink Granite

Phaneritic Plutonic Felsic Igneous Rock (Granite)

Corundum (Ruby Variety)

Corundum (Al2O3)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Granite (Leucogranite)

Felsic Plutonic Rock (Granite)

Granite Pebble (Salt and Pepper Granite)

Felsic Intrusive Igneous Rock (Granite)

Granitic Gneiss

Gneiss (containing Potassium Feldspar and Quartz)

Basalt with Hematite staining

Extrusive mafic igneous rock with Fe2O3

Diorite

Intermediate plutonic igneous rock

Basalt with Amygdules

Amygdaloidal Basalt

Muscovite Mica (Granitic Pegmatite)

Muscovite - KAl2(AlSi3O10)(OH)2

Peach Moonstone

Potassium Aluminum Silicate, KAlSi3O8

Quartz (Common or Milky)

Silicon Dioxide (SiO2)

Gneiss

Gneiss (Metamorphic rock composed primarily of quartz, feldspar, and mica)

Hematite

Iron(III) oxide (Fe2O3)

Chalcedony (Grey/White Agate)

Silicon Dioxide (SiO₂)

Pyrite (on Quartz matrix)

Iron Disulfide (FeS2)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Green Aventurine

Silicon Dioxide (Quartz with Fuchsite inclusions), SiO2 + K(Al,Cr)2AlSi3O10(OH)2

Blue Calcite

Calcium Carbonate (CaCO3)

Olivine (Peridot)

Magnesium Iron Silicate (Mg,Fe)2SiO4

Aventurine

Quartz (SiO2) with inclusions of Fuchsite

Calcite

Calcium Carbonate (CaCO3)