Sedimentary And Metamorphic Minerals

Clear Quartz

Silicon dioxide (SiO2)

Clear Quartz (Rock Crystal)

Quartz (Silicon Dioxide, SiO2)

Quartz (Milky/Common)

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2) / Rock Crystal

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Quartz (Milky Quartz / Quartzite)

Silicon Dioxide (SiO2)

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Clear Quartz Sphere

Quartz (Silicon Dioxide, SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartz (Milky and Bull Quartz)

Silicon Dioxide (SiO2)

Green Aventurine

Quartz (Aventurine variety) - SiO₂ with Fuchsite inclusions

Epidote

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

Kyanite in Quartz

Al2SiO5 in SiO2

Galena

Lead(II) sulfide (PbS)

Quartz with Mica (Gneissic or Pegmatitic origin)

Silicon Dioxide (SiO2) with Phyllosilicates (KAl2(AlSi3O10)(F,OH)2)

Greenschist / Greenstone

Greenschist facies metabasite

Slate

Slate (foliated metamorphic rock)

Greenstone

Metabasalt / Chlorite-Epidote Schist

Quartz (likely macrocrystalline variety)

Quartz (SiO₂)

Marble

Recrystallized Calcite (CaCO3)

Schist

Mica Schist (variety: Muscovite/Biotite Schist)

Clear Quartz Crystal Cluster

Silicon Dioxide (SiO2)

Agate

Silicon Dioxide (SiO2) - variety of Chalcedony

Blue Kyanite

Kyanite (Al2SiO5)

Plagioclase Feldspar (specifically Albite/Oligoclase)

(Na,Ca)(Si,Al)4O8

Milky Quartz Pebble

Silicon Dioxide (SiO2)

Granitic Gneiss

Gneiss (containing Potassium Feldspar and Quartz)

Iron-Stained Quartzite

Recrystallized Meta-Quartzite (primarily SiO2)

Jade (likely Nephrite or Jadeite)

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2) or Jadeite (Na(Al,Fe3+)Si2O6)

Feldspar (specifically Orthoclase)

Potassium Aluminum Silicate (KAlSi3O8)

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Moonstone

Orthoclase (Potassium Aluminum Silicate), Formula: (K,Na)AlSi3O8

Banded Chert / Banded Jasper (likely a variety of Chert/Chalcedony)

Chert (microcrystalline quartz)

Garnet Schist

Almandine-Mica Schist

Anyolite (Ruby in Zoisite)

Zoisite with inclusions of Hornblende and Ruby (Ca2Al3(SiO4)3(OH))

Quartz

Silicon dioxide (SiO₂)

Calcite

Calcium Carbonate (CaCO3)

Black Sapphire

Corundum (Al2O3 with iron and titanium impurities)

Limonite (Iron Ore)

Limonite (FeO(OH)·nH2O)