Mineral Like Industrial Smelting Waste

Granitic Pegmatite (Muscovite and Quartz)

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

Quartz vein in metamorphic rock

Crystalline Silicon Dioxide (SiO2) in Host Rock

Granite Pegmatite

Coarse-grained Granite (SiO2 - Aluminum and Alkalies)

Quartz / Common Opal Transition

Silicon Dioxide (SiO2)

Diamond

Carbon (C)

Kyanite in Quartz

Al2SiO5 in SiO2

Prehnite

Prehnite (Ca2Al2Si3O10(OH)2)

Blue Sapphire

Corundum (Al2O3) with iron and titanium impurities

Orange Calcite with Siderite/Iron Oxide Coating

Calcium Carbonate (CaCO3)

Industrial Diamond (Bort or Boart)

Diamond (pure Carbon, C)

Diamond (in jewelry setting)

Cubic Carbon (C)

Peridot

Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4

Sandstone with Concretions / Liesegang Rings

Arenite with iron oxide banding

Sandstone (Quartzose Sandstone)

Clastic Sedimentary Rock (Lithic arenite / Quartz arenite)

Blue Sapphire

Corundum (Al2O3) with traces of Iron and Titanium

Ironstone (with Limonite/Goethite)

Ferruginous Sedimentary Rock (contains Limonite FeO(OH)·nH2O and Hematite Fe2O3)

Botryoidal Chalcedony (Agate/Desert Rose Chalcedony)

Silicon Dioxide (SiO2) - Cryptocrystalline Quartz

Green Fluorite

Fluorite (Calcium Fluoride - CaF2)

Pegmatite (with smoky quartz and tourmaline/biotite)

Pegmatitic Granite

Corundum (variety Ruby/Sapphire)

Aluminum Oxide (Al2O3)

Sandstone

Arenite (primarily SiO2)

Ironstone Concretion

Siderite or Hematite-bonded Concretion

Chakra Tumbled Stone Set

Various (including Amethyst [SiO2], Sodalite [Na8(Al6Si6O24)Cl2], Green Aventurine [SiO2], Red Jasper [SiO2], etc.)

Quartz Pebble

Silicon Dioxide (SiO2)

Ruby, Emerald, and Sapphire (Corundum and Beryl)

Corundum (Al2O3) and Beryl (Be3Al2Si6O18)

Granitic Pegmatite

Granite Pegmatite (principally KAlSi3O8, SiO2, and KAl2(AlSi3O10)(OH)2)

Green Calcite

Calcium Carbonate (CaCO3)

Pegmatite (Granitic)

Granitic Pegmatite containing Quartz, Feldspar, and Tourmaline (Schorl)

Kyanite in Quartz

Kyanite (Al2SiO5) with Quartz (SiO2)

Quartz Druze on Matrix

Silicon Dioxide (SiO2)

Fuchsite

K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)

Asphalt Concrete (Bituminous Concrete)

Bituminous aggregate

Asphalt Concrete

Bituminous conglomerate

Silicon Carbide (Carborundum)

Silicon Carbide (SiC)

Banded Agate

Chalcedony / Silicon Dioxide (SiO2)

Rough Garnet (likely Almandine or Pyrope)

Garnet group; Almandine Fe3Al2(SiO4)3 or Pyrope Mg3Al2(SiO4)3

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic Volcanic Rock)

Aquamarine

Beryl (Be3Al2Si6O18)

Quartz with Mica inclusions (likely Iron-stained)

Silicon Dioxide (SiO2) with Phyllosilicates

Granitic Pegmatite

Granite (with coarse-grained Quartz, Feldspar, and Mica components)

Prehnite

Prehnite (Ca2Al(AlSi3O10)(OH)2)