Beryl (Aquamarine) in Matrix with Schorl
Be3Al2Si6O18 (Beryl) with NaFe3Al6(BO3)3Si6O18(OH)4 (Schorl)
mineral
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Heliotrope (Bloodstone)
Silicon dioxide (SiO2) with inclusions
mineral
Blue Chalcedony
Silicon Dioxide (SiO2)
mineral
Raw Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium impurities)
mineral
Druzy Quartz on Milky Quartz
Silicon Dioxide (SiO2)
mineral
Labradorite (Dark Matrix)
Plagioclase Feldspar ((Ca, Na)(Al, Si)4O8)
mineral
Iron Slag (Industrial Byproduct)
Anthropogenic Vitrification Product/Ferrous Slag
Mineral-like Industrial Smelting Waste
Amethyst
Silicon Dioxide (SiO2) with iron impurities
mineral
Chrysocolla
Hydrated copper silicate (Cu,Al)2H2Si2O5(OH)4·n(H2O)
mineral
Amethyst
Amethyst (Silicon Dioxide - SiO2 with Iron impurities)
mineral
Amethyst
Amethyst (Silicon Dioxide, SiO2)
mineral
Jasper (specifically Yellow/Red Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Ironstone Concretion
Siderite or Limonite Concretion (FeCO3 or FeO(OH)·nH2O)
sedimentary
Black Onyx
Silicon Dioxide (SiO2) - Chalcedony variant
mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Amethyst (Geode/Druzy)
Silicon Dioxide (SiO2) with iron impurities
mineral
Tiger's Eye
Pseudomorph of Quartz after Crocidolite (SiO2)
metamorphic
Green Aventurine
Silicon dioxide (SiO2) with fuchsite inclusions
mineral
Desert Rose
Gypsum (CaSO4·2H2O) or Barite (BaSO4) inclusions in sand
mineral
Sodalite
Sodalite (Na8(Al6Si6O24)Cl2)
mineral
Quartz (Amethyst variety)
Silicon Dioxide (SiO2)
mineral
Druzy Quartz
Silicon Dioxide (SiO2)
mineral
Septarian Nodule
Septarian Concretion (Calcium Carbonate/Aragonite/Calcite)
sedimentary
Amazonite
Potassium aluminum silicate (KAlSi3O8)
mineral
Amethyst (Tumbled)
Purple Quartz (SiO2 with iron impurities and irradiation)
mineral
Carnelian
Carnelian (Silicon Dioxide, SiO2)
mineral
Chalcedony
Chalcedony (SiO2)
mineral
Drill Core (Basalt or Andesite)
Volcanic porphyry (mafic to intermediate)
igneous
White Opal (Common)
Hydrated Silica (SiO2·nH2O)
mineral
Strawberry Quartz (Red Aventurine)
Silicon Dioxide (SiO2) with Hematite/Goethite inclusions
mineral
Quartz (Smoky Quartz variant)
Silicon Dioxide (SiO2)
mineral
Flower Agate (Cherry Blossom Agate)
Chalcedony (SiO2) with Opaque Inclusions
mineral
Amazonite
Potassium Feldspar (KAlSi3O8)
mineral
Amazonite
Amazonite (KAlSi3O8)
mineral
Rainbow Moonstone with Black Tourmaline
White Labradorite (Feldspar variety, (Na,Ca)(Al,Si)4O8) with Schorl (NaFe3Al6(BO3)3Si6O18(OH)4)
mineral
Anyolite (Ruby in Zoisite)
Zoisite with inclusions of Hornblende and Ruby (Ca2Al3(SiO4)3(OH))
metamorphic
Tourmalinated Quartz
Silicon Dioxide (SiO2) with Schorl inclusions (NaFe2+3Al6(BO3)3Si6O18(OH)4)
mineral
Ethiopian Fire Opal
Hydrated Silica (SiO2·nH2O)
mineral
Chlorastrolite (Isle Royale Greenstone)
Chlorastrolite (Pumpellyite-(Mg,Al)), formula: Ca2(Mg,Fe)Al2(SiO4)(Si2O7)(OH)2∙H2O
mineral
Mookaite Jasper
Silicified Radiolarite (SiO2)
sedimentary
Jasper (likely Polychrome or Ocean Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Amazonite
Amazonite (K(AlSi3O8))
mineral