Sedimentary Or Metamorphic Derived

Quartzite

Quartzite (SiO2)

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Quartzite pebble

Quartzite (primarily SiO2)

Quartzite (Iron-stained)

Quartzite (SiO2 with iron oxides)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Smoky Quartz

Silicon Dioxide (SiO2)

Smoky Quartz

Silicon Dioxide (SiO2)

Peach Moonstone

Orthoclase Feldspar (KAlSi3O8)

Quartzite Pebble

Metamorphic Quartzite (SiO2)

Green Aventurine

Silicon dioxide (SiO2) with inclusions of Fuchsite

Prase or Green Quartz

Silicon Dioxide (SiO2 with actinolite or chlorite inclusions)

Iolite (Cordierite)

Cordierite (Magnesium iron aluminum cyclosilicate), Mg2Al4Si5O18

Rough Sapphire

Corundum (Al2O3)

Quartz (Clear Quartz/Rock Crystal)

Silicon Dioxide (SiO2)

Almandine Garnet

Almandine, Fe3Al2(SiO4)3

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite

Quartzite (primarily SiO2)

Garnetiferous Pegmatite

Pegmatite with Almandine Garnet and Muscovite

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Green Aventurine

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

Orthoclase Feldspar

Orthoclase (KAlSi3O8)

Serpentine

Antigorite/Lizardite (Mg,Fe)3Si2O5(OH)4

Quartzite with Gneissic Banding

Quartzite (primarily SiO2) with mafic mineral inclusions

Milky Quartz

Crystalline Silicon Dioxide (SiO2)

Quartzite

Quartzite (primarily SiO2)

Quartz with Chlorite or Hornblende inclusions

Silicon dioxide (SiO2) with phyllosilicate or amphibole inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Dragon Stone (Dragon Blood Jasper)

Epidote with Pietersite or Red Jasper inclusions (varied SiO2 and Ca2(Al,Fe)3(SiO4)3(OH))

Quartzite Pebble

Metamorphosed Quartz Sandstone (SiO2)

Garnet in Matrix (Eclogite)

Eclogite, featuring Almandine or Pyrope Garnet [X3Y2(SiO4)3]

Jadeite Jade

Sodium Aluminum Silicate (NaAlSi2O6)

Rutilated Prehnite

Prehnite - Ca2Al(AlSi3O10)(OH)2 with Epidote/Tourmaline inclusions

Peacock Ore

Bornite (Cu5FeS4)

Quartzite River Rock

Quartzite (primarily SiO2)

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Quartzite (or Milky Quartz pebble)

Quartzite (Metamorphosed Sandstone) / Silicon Dioxide (SiO2)

Unakite

Epidotized Granite

Chlorite (Small Flakes/Sand)

Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)

Biotite Mica in Quartz

Biotite (K(Mg,Fe)3AlSi3O10(F,OH)2) in Quartz (SiO2)

Citrine

Silicon Dioxide (SiO2)

Nephrite Jade

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

Banded Agate (White Agate)

Chalcedony (Silicon Dioxide, SiO2)