Jasper (Red Jasper)
Jasper (SiO2 - Silicon Dioxide with iron inclusions)
sedimentary
Category
Organic Gem Material (Botanical)
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Smoky Quartz with Chert
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Red Jasper (specifically Brecciated Jasper)
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Moonstone (Tumbled)
Orthoclase Feldspar (KAlSi3O8) with inclusions of Albite
mineral
Red Jasper
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions
sedimentary
Smoky Quartz (with Druzy/Polished Edge)
Smoky Quartz (Silicon Dioxide, SiO2)
mineral
Moonstone
Orthoclase and Albite (KAlSi3O8 / NaAlSi3O8)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
SiO2 (Silicon Dioxide)
mineral
Amethyst
Amethyst (SiO2)
mineral
Peridot
Olivine (Magnesium Iron Silicate), (Mg, Fe)2SiO4
mineral
Rhodonite
Manganese Silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Smoky Quartz
Smoky Quartz (SiO2 - Silicon Dioxide with aluminum impurities)
mineral
Moonstone
Orthoclase (KAlSi3O8) with inclusions of Albite (NaAlSi3O8)
mineral
Raw Emerald
Beryl (Be3Al2Si6O18 with Chromium/Vanadium)
mineral
Corundum (Sapphire/Ruby in Matrix)
Corundum (Al2O3)
mineral
Coquina
Biogenic Limestone (Calcium Carbonate - CaCO3)
sedimentary
Dendritic Agate (or Dendritic Opal)
SiO2 (for Agate), SiO2·nH2O (for Opal)
Mineral
Lake Superior Agate
Chalcedony (Microcrystalline Quartz, SiO2)
sedimentary
Amethyst
SiO2 (Silicon Dioxide with Iron impurities)
mineral
Peridotite (Olivine/Peridot)
Peridotite (comprising (Mg,Fe)2SiO4)
igneous
Jasper (Red Chert)
Jasper (Silicon Dioxide, SiO2)
sedimentary
Red Jasper
Silicon Dioxide (SiO2) with iron oxide inclusions
sedimentary
Moonstone
Orthoclase Feldspar ((K,Na)AlSi3O8)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Agate (Moss or Lake Superior type)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
mineral
Amethyst and Gravel Collection
Amethyst (Silicon Dioxide, SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Garnet in Schist (Polished Tower)
Almandine Garnet (Fe3Al2(SiO4)3) in Mica Schist
metamorphic
Almandine Garnet in Matrix
Almandine, Fe3Al2(SiO4)3
metamorphic
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Smoky Quartz
Silicon Dioxide (SiO2) with aluminum impurities
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite impurities
sedimentary
Jasper
Silicon Dioxide (SiO2)
sedimentary
Sapphire Rough (Corundum)
Corundum (Aluminum Oxide, Al2O3)
mineral
Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert / Flint
Chert (varietal name for microcrystalline quartz). Chemical formula: SiO₂
Mineral
Chert (variant Flint/Jasper)
Microcrystalline Opaline Silica (SiO2)
sedimentary
Yellow Sapphire
Corundum (Al2O3)
mineral