Metamorphic Or Sedimentary

Quartzite

Quartzite (primarily SiO2)

Quartzite

Quartzite (SiO2)

Quartzite

Quartzite (SiO2 silicon dioxide)

Quartzite

Quartzite (SiO2)

Sapphire

Corundum (Al2O3)

Epidote in Quartz

Epidote (Ca2(Al,Fe)3(SiO4)3(OH)) in Milky Quartz (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

Quartzite

Quartzite (primarily SiO2)

Shale (sub-type: Carbonaceous Shale)

Lutaceous Sedimentary Rock

Quartzite

Quartzite (Primary mineral: Quartz, SiO2)

Green Aventurine (Green Quartzite)

Silicon Dioxide (SiO2) with inclusions of Fuchsite (chromium-rich mica)

Jade (likely Nephrite or Jadeite)

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

Quartzite

Quartzite (primarily SiO2)

Epidote with Quartz and Feldspar

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

Unakite

Epidotized Granite

Quartzite

Quartzite (SiO2)

Tiger's Eye (Rough)

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Almandine Garnet

Almandine (Fe3Al2(SiO4)3)

Green Quartzite (Aventurine-like)

Quartzite (primarily SiO2 with trace Fuchsite mica inclusions)

Schist

Mica Schist (primarily Muscovite and Quartz)

Soapstone

Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)

Red Garnet

Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)

Cloud Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Cloudy Quartz

Quartz (Silicon Dioxide, SiO2)

Quartz with Mica (Schist/Pegmatite fragment)

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

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz (with Iron Oxide staining)

Quartz (Silicon Dioxide - SiO2)

Milky Quartz (Water-worn Pebble)

Silicon Dioxide (SiO2)

Tanzanite

Blue Zoisite (Ca2Al3(SiO4)(Si2O7)O(OH))

Quartz Vein (Iron-stained)

Silicon Dioxide (SiO2) with limonite/hematite staining

Quartz (Milky or White Quartz)

Silicon Dioxide (SiO2)

Green Aventurine

Silicon Dioxide (SiO2) with Fuchsite inclusions

Jade (specifically Nephrite or Jadeite beads)

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

Milky Quartz with Iron Staining

Silicon Dioxide (SiO2)

Rough Tanzanite

Zoisite (Ca2Al3(SiO4)3(OH))

Quartz (Smoky Quartz variant)

Silicon Dioxide (SiO2)

Milky Quartz (Common Quartz)

Quartz (Silicon Dioxide, SiO2)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)