Jasper (Iron-rich)
Silicon Dioxide (SiO2) with Hematite (Fe2O3) impurities
Category
Browse antropogenic (man made glass byproduct) specimens identified by the Rock Identifier community.
Jasper (Iron-rich)
Silicon Dioxide (SiO2) with Hematite (Fe2O3) impurities
Pearl (Imitation or Cultured)
Calcium Carbonate (Aragonite/Calcite) - CaCO3
Yellow Quartz / Citrine Quartz
Silicon Dioxide (SiO2)
Quartzite Pebbles
Quartzite (SiO2)
White Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Opaque variety)
Silicon Dioxide (SiO2)
Sandstone
Arenicola (comprising mostly Quartz, SiO2)
Yellow Quartz (Citrine Quartz)
Silicon Dioxide (SiO2)
Mahogany Obsidian
Volcanic glass (SiO2 with Hematite or Magnetite inclusions)
Chert (Yellow Jasper variant)
Microcrystalline or cryptocrystalline Quartz (SiO2)
Amethyst (Druze)
Silicon Dioxide (SiO2) with iron impurities
Raw Diamond
Diamond (pure Carbon, C)
Tree Agate
Silicon Dioxide with Chlorite inclusions (SiO2)
Banded Chert (Agate-like Flint)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Dendritic Agate
Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)
Orange Quartz (Citrine Quartz variety)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Milky Quartz with Iron Inclusions
Silicon Dioxide (SiO2)
Chert (and Limestone)
Chert (consisting of Microcrystalline Quartz, SiO2)
Orthoclase Feldspar
KAlSi3O8 (Potassium Aluminum Silicate)
Quartzite
Quartzite (primarily SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz Chips
Quartz (Silicon Dioxide - SiO2)
Rose Quartz
Quartz (Silicon Dioxide - SiO2)
Pegmatite with Smoky Quartz and Feldspar
Pegmatite (Quartz: SiO2, Feldspar: KAlSi3O8)
Agate (Moss or Plume Agate variety)
Silicon Dioxide (SiO2)
Fluorite
Fluorite (Calcium Fluoride - CaF2)
Limestone
Calcium Carbonate (CaCO3)
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2 (Lepidolite - Lithium-rich Mica)
Green Aventurine
Silicon Dioxide (SiO2) with inclusions of Fuchsite mica
Pink Quartzite
Quartzite (mainly SiO2 with iron oxide impurities)
Chert (Flint)
Chert (Cryptocrystalline variety of Quartz, SiO2)
Obsidian
Volcanic Glass (predominantly SiO2)
Quartzite
Quartzite (SiO2)
Ferruginous Quartzite (Iron-stained Quartzite)
Quartzite with Iron oxides (FeO(OH) / Fe2O3)
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
Quartzite
Quartzite (SiO2)
Chert / Flint
Cryptocrystalline Quartz (SiO2)