Mineral, Often Found In Metamorphic Rocks But Also In Sedimentary And Igneous Rocks

Orange Calcite

Calcite (Calcium Carbonate - CaCO3)

Polished Basalt

Basalt (Mafic volcanic rock)

Yellow Jasper

Silicon Dioxide (SiO2) with iron impurities

White Topaz

Aluminum silicate fluoride hydroxide (Al2SiO4(F,OH)2)

Pyrite (Fool's Gold)

Iron Disulfide (FeS2)

Green Aventurine

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

Green Aventurine

Silicon Dioxide (Quartz) with inclusions of Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)

Sandstone (Weathered Pebble)

Arenite (SiO2 primarily)

Quartz (specifically Citrine or Yellow Quartzite pebble)

Silicon Dioxide (SiO2)

Rose Quartz

Silicon Dioxide (SiO2)

Labradorite

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

Sandstone

Arenite/Quartz Arenite

Pink Quartz (Rose Quartz variant)

Silicon Dioxide (SiO2)

Quartzite

Quartzite (SiO2)

Sandstone (Quartzose)

Arenite (predominantly SiO2)

Rough Emerald/Green Beryl

Beryl (Be3Al2(SiO3)6) with trace amounts of Chromium or Vanadium

Pink Granite

Phaneritic intrusive felsic igneous rock

Tourmaline

Complex Borosilicate - Na(Li,Al)3Al6(BO3)3Si6O18(OH)4 (Elbaite species)

Chalcedony / Agate

Silicon Dioxide (SiO2)

River Cobble (likely Basalt or Chert)

Siliceous River Rock / Microcrystalline Quartz / Mafic Igneous

Quartzite

Quartzite (SiO2)

Sandstone

Arenite (primarily SiO2)

Milky Quartz with Hematite/Limonite staining

Silicon Dioxide (SiO2)

Carnelian

Carnelian (a variety of Chalcedony, SiO2)

White Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartzite

Metamorphic Quartz (SiO2)

Fluorite

Calcium fluoride (CaF2)

Amazonite

Potassium feldspar (Microcline) - K(AlSi3O8)

Carnelian (Chalcedony variety)

SiO2 (Silicon Dioxide)

Quartzite

Quartzite (primarily SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Carnelian

Carnelian (Silicon Dioxide, SiO2)

Mookaite Jasper

Siliceous (chert) sedimentary rock, a form of Jasper

Red Jasper

Silicon Dioxide with Iron Oxide (SiO2)

Quartzite

Metamorphosed Quartz Sandstone (SiO2)

Granitic Pegmatite (Muscovite and Quartz)

Pegmatite (KAl2(AlSi3O10)(OH)2 / SiO2)

Sandstone

Arenite (primarily SiO2)

Quartz (Druzy or Geode fragment)

Silicon Dioxide (SiO2)

Almandine Garnet in Schist

Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Fluorite (Rainbow Fluorite)

Calcium Fluoride (CaF2)

Emerald in Matrix (Quartz/Schist)

Beryl (Be₃Al₂Si₆O₁₈) with Chromium/Vanadium impurities