Quartzite
Quartzite (Primary mineral: SiO2)
metamorphic
Category
Sedimentary (Primary) With Artificial Modification
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Quartzite
Quartzite (Primary mineral: SiO2)
metamorphic
Quartzite
Quartzite (Primary mineral: SiO2)
metamorphic
Quartzite
Quartzite (Primary mineral: SiO2)
metamorphic
Quartzite
Quartzite (Primary constituent: SiO2)
metamorphic
Granite
Phaneritic Felsic Igneous Rock
igneous
Green Aventurine
Aventurine Quartz (SiO2 with Fuchsite inclusions)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Quartz (Silicon Dioxide, SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Olivine (Peridotite)
(Mg, Fe)2SiO4 (Magnesium Iron Silicate)
igneous
Chrysocolla
Chrysocolla (Cu2-xAlx(H2-xSi2O5)(OH)4·nH2O)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Specular Hematite
Specularite (Iron(III) oxide, Fe2O3)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Copper-bearing Quartz (likely Malachite on Quartz matrix)
Cu2CO3(OH)2 (Malachite) on SiO2 (Quartz)
mineral
Olivine (Peridotite)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
igneous
Red Aventurine
SiO2 (Silicon Dioxide with Hematite/Goethite inclusions)
mineral
Olivine (Peridot when gem-quality)
Olivine Group (Magnesium Iron Silicate, (Mg,Fe)2SiO4)
mineral
Crushed Stone (Basalt/Gabbro)
Mafic Igneous Rock (primarily Plagioclase and Pyroxene)
igneous
Blue Topaz
Aluminum Silicate Fluoride Hydroxide Al2SiO4(F,OH)2
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Fluorite
Calcium fluoride (CaF2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Shungite
Non-crystalline carbon (similar to anthracite coal or meta-anthracite)
metamorphic
Azurite and Malachite on Matrix
Azurite: Cu3(CO3)2(OH)2; Malachite: Cu2CO3(OH)2
mineral
Jadeite and Mixed Gemstones (Ruby, Sapphire, Emerald)
Jadeite (NaAlSi2O6), Corundum (Al2O3), Beryl (Be3Al2(Si6O18))
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Banded Iron Formation
Banded Iron Formation (BIF)
Sedimentary Rock
Ocean Jasper
Orbicular Jasper (variety of Chalcedony - SiO2)
Mineral
Quartz
Silicon Dioxide (SiO2)
Mineral
Calcite
Calcite (CaCO3)
Mineral
Quartzite
Quartzite (Primary mineral: SiO2)
metamorphic
Felsic Tuff
Pyroclastic volcanic rock (Tuff)
igneous
Coarse-grained Quartz and Feldspar Pegmatite
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8)
igneous
Basalt
Basalt (Aphanitic Mafic Igneous Rock)
igneous
Pegmatite (White Granite variant)
Pegmatitic Granite (Quartz and Feldspar rich)
igneous