Sedimentary And Metamorphic

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (primarily SiO2)

Yellow Quartzite

Quartzite (SiO2)

White Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Yellow Quartzite Pebble

Quartzite (primarily SiO2)

Lapis Lazuli

Lapis Lazuli (Metamorphic rock containing lazurite (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2, calcite, and pyrite)

Tiger's Eye (with Blue Tiger's Eye / Hawk's Eye)

Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)

Yellow Quartzite

Quartzite (primarily SiO2)

Quartzite (Pebble)

Quartzite

Slate

Slate (Metamorphosed Mudstone/Shale)

Nephrite Jade / Pounamu

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Quartzite

Quartzite (SiO2)

Lapis Lazuli

Lapis lazuli (complex rock composed of Lazurite, Calcite, and Pyrite)

Quartzite

Quartzite (SiO2)

Quartzite Pebbler

Quartzite (mainly SiO2)

Anthracite Coal

Anthracite

Quartzite (River Cobble)

Quartzite (SiO2)

Yellow Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Unakite

Epidotized Granite

Quartzite

Quartzite (primarily SiO2)

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)

Serpentinite

Serpentinite (composed primarily of serpentine group minerals like lizardite, chrysotile, or antigorite; Mg3Si2O5(OH)4)

Unakite (Epidote-Rich Granite)

Unakite (Granite consisting of Orthoclase, Quartz, and Epidote)

Quartzite (or Quartz Rich Conglomerate)

Quartzite (SiO2 silicon dioxide)

Quartzite

Quartzite (Primary mineral: Silicon Dioxide, SiO2)

Eclogite

Eclogite (comprising Omphacite and Garnet)

Unakite

Unakite (Metasomatized Granodiorite)

Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (primarily SiO2)

Lapis Lazuli

Sodium aluminum silicate with sulfur (main component: Lazurite [(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2])

Lapis Lazuli (Tumbled Specimen)

Lapis Lazuli (Aggregate rock containing Lazurite: (Na,Ca)8(AlSiO4)6(SO4,S,Cl)2)

Serpentinite

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

Nephrite Jade

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)

Greenstone

Greenschist (commonly containing Chlorite, Actinolite, and Epidote)

Nephrite Jade

Ca2(Mg, Fe)5Si8O22(OH)2 (Tremolite-Actinolite series)

Unakite

Unakite (altered granitic rock: SiO2 + Ca2(Al,Fe)3(SiO4)3(OH))

Serpentine

Serpentine group ((Mg, Fe, Ni, Al, Zn, Mn)3(Si, Al, Fe)2O5(OH)4)

Grey Quartzite Pebble

Quartzite (primarily SiO2 - Silicon Dioxide)

Red Quartzite / River Cobble

Quartzite (SiO2 with iron oxide impurities)

Orange Quartzite (Tumble-polished)

Quartzite (primarily SiO2)