Yellow Jasper
Tectosilicates (SiO2) with Goethite/Iron oxide inclusions
sedimentary
Category
Mineral, Specifically A Detrital Grain
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Red Jasper
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3)
sedimentary
Almandine Garnet
Almandine - Fe3Al2(SiO4)3
mineral
Weathered rock fragment
Undetermined; possibly a coarse-grained granitoid
igneous
Pink Granite
Granite (Phaneritic igneous rock)
igneous
Tumbled dark stone, possibly basalt or smoky quartz
Uncertain from image; likely fine-grained basalt (plagioclase–pyroxene) or a dark quartz-rich pebble
igneous
Chert (likely jasper/chalcedony-rich chert)
Microcrystalline quartz, SiO₂
sedimentary
Pink Granite
Phaneritic Felsic Igneous Rock (composed primarily of K-Feldspar, Quartz, and Mica)
igneous
Fancy Jasper
Silicon Dioxide (SiO₂)
sedimentary
Quartzite (specifically an iron-stained or Carnelian-colored variety)
Silicon Dioxide (SiO2) with iron oxide inclusions
metamorphic
Schist
Schist (various mineral compositions)
metamorphic
Smoky Quartz (with inclusions)
Silicon Dioxide (SiO2)
mineral
Smoky Quartz (with complementary stones in jewelry setting)
Smoky Quartz (Silicon Dioxide - SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Ocean Jasper
Spherulitic Chalcedony (SiO2)
mineral
Sunstone
(Ca,Na)((Al,Si)2Si2O8) - Plagioclase Feldspar
mineral
Moonstone (Adularia)
Potassium aluminum silicate (KAlSi3O8)
mineral
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
mineral
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
mineral
Granite (specifically Red Granite)
Phaneritic Plutonic Rock (High in Alkali Feldspar and Quartz)
igneous
Magnetite
Magnetite (Fe3O4)
mineral
Conglomerate
Polymictic Conglomerate
sedimentary
Basalt
Basalt (Mafic volcanic rock)
igneous
Snowflake Obsidian
Obsidian with Cristobalite inclusions
igneous
Granodiorite (or Granite) Pebble
Phaneritic Felsic Igneous Pebble
igneous
Soapstone / Steatite
Steatite (primarily Talc, Mg3Si4O10(OH)2)
metamorphic
Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Pink Granite
Granite (Phaneritic intrusive igneous rock dominated by Quartz and K-Feldspar)
igneous
N/A - Image is non-geological
Acrylonitrile Butadiene Styrene (ABS) or Polypropylene (PP)
Synthetic material (Plastic/Polymer)
Red Granite
Phaneritic Plutonic Felsic Rock (rich in Potassium Feldspar)
igneous
Lepidolite with Quartz
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
mineral
Feldspar (specifically Orthoclase)
Potassium Aluminum Silicate (KAlSi3O8)
mineral
Sandstone (lithic)
Lithic Wacke / Arenite
sedimentary
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
African Turquoise
Jasper / Quartz matrix (Trade name: African Turquoise, chemically a form of microcrystalline quartz with various mineral inclusions)
gemstone
Jasper
Silicon Dioxide (SiO2) with iron oxide impurities
sedimentary
Ruby (Raw/Rough)
Corundum (Al2O3 with Chromium trace)
mineral
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Ferruginous Quartz
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
mineral
Quartzite Cobble
Quartzite (SiO2)
metamorphic