Igneous And Metamorphic

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Jade (specifically Nephrite or Jadeite beads)

Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2) or Jadeite (NaAlSi2O6)

Garnet (Almandine)

Almandine (Fe3Al2(SiO4)3)

Slate

Foliated Metamorphic Rock (composed mainly of Quartz, Illite, and Chlorite)

Anthracite Coal

Anthracite (Carbon-based metamorphic rock, 86-97% C)

Wishing Stone with Quartz Veins

Quartzite or Quartz-veined Metamorphic Rock (composed mainly of SiO2)

Diamond Drill Core (Greenschist and Quartzite)

Chlorite Schist / Meta-quartzite (Metamorphic Rock Core Sample)

Jade

Jadeite or Nephrite (both are commonly referred to as 'jade'). Jadeite: NaAlSi2O6; Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2.

Jade (Nephrite or Jadeite)

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

Gossan (Iron Hat)

Limonitic Gossan (predominantly FeO(OH)·nH2O)

Fuchsite Quartzite

Fuchsite-bearing Quartzite

Milky Quartz with Mineral Inclusions

Silicon Dioxide (SiO2) with miscellaneous inclusions

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Quartzite

Quartzite (primarily SiO2)

Lapis Lazuli

Na8[Al6Si6O24]S2 (Lazurite component), a rock composed primarily of Lazurite, Calcite, and Pyrite

Zebra Jasper (usually a trade name for Serpentine or Basalt blend)

Antigorite/Chrysotile (Serpentine family) - Mg3Si2O5(OH)4

Aventurine

Aventurine Quartz (SiO2 with inclusions)

Lapis Lazuli

Lapis Lazuli (Na,Ca)8(AlSiO4)6(S,Cl,SO4,OH)2

Granite

Granite (Phaneritic Igneous Rock)

Granite Pebble

Igneous Intrusive Rock (Quartz-Feldspar-Mica Phenocrysts)

Granite

Phaneritic plutonic rock (primarily Quartz, Feldspar, and Mica)

Granite

Granite (composed mainly of Quartz, Feldspar, and Mica)

Granite

Intrusive igneous rock (SiO2 range 65-75%)

Banded Quartzite

Quartzite (primarily SiO2)

Jasper containing epidote (Unakite-like)

Epidotized Jasper (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))

Chiastolite (Andalusite)

Al2SiO5

Graphite

Graphite (Native Carbon, C)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Muscovite Mica

Muscovite (KAl2(AlSi3O10)(OH)2)

Green Aventurine

Aventurine Quartz (SiO2 with inclusions of Fuchsite mica)

Green Aventurine

Silicon Dioxide (SiO2+KAl2(AlSi3O10)(OH)2)

Pyrite-rich Ore

Pyrite (FeS2) with secondary minerals

Jadeite

NaAlSi2O6; Jadeite silicate mineral

Aventurine

Silicon dioxide with micas (SiO2 + K(Al,Cr)2AlSi3O(OH)2)

Amethyst

SiO2 (Silicon Dioxide with Iron impurities)

Jade (Nephrite and Jadeite)

Nephrite: Ca2(Mg,Fe)5Si8O22(OH)2; Jadeite: NaAlSi2O6

Jadeite

NaAlSi2O6 (Sodium Aluminum Silicate)

Amazonite

K(AlSi3O8) - Potassium Aluminum Silicate

Bornite (Peacock Ore)

Bornite (Cu5FeS4)

Nephrite Jade

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

Aquamarine

Beryl (Be3Al2Si6O18)

Banded Agate (White Agate)

Chalcedony (Silicon Dioxide, SiO2)