Cubic Zirconia (CZ)
Cubic Zirconium Dioxide (ZrO2)
mineral (synthetic)
Category
Man Made (Synthetic Rock)
Browse man made (synthetic rock) specimens identified by the Rock Identifier community.
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Chrysocolla
Hydrated copper phyllosilicate, (Cu,Al)2H2Si2O5(OH)4·nH2O
mineral
Seven Chakra Bonded Stone
Bonded composite of Red Jasper, Carnelian, Tiger's Eye, Aventurine, Lapis Lazuli, Amethyst, and Clear Quartz
metamorphic
Sunstone (Aventurine Feldspar)
(Ca,Na)((Al,Si)2Si2O8) with inclusions of Cu or Fe2O3
mineral
Chert (often called Flint in archaeological contexts)
Silicon Dioxide (SiO2)
sedimentary
Diamond
Diamond (pure Carbon, C)
mineral
Diamond
Carbon (C)
mineral
Rough Diamond
Pure Carbon (C)
mineral
Obsidian
Volcanic glass
igneous
Chert (Flint nodule)
Chert (SiO2)
sedimentary
Chert (specifically Flint)
Chert (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Chert (Polished River Pebble)
Chert (SiO2)
sedimentary
Sunstone
(Ca,Na)((Al,Si)2Si2O8) - Plagioclase Feldspar
mineral
Chert (Flint)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
sedimentary
Pearl
Biogenic Calcium Carbonate (Aragonite/Calcite), CaCO3
mineral
Jasper / Chert (Red)
Cryptocrystalline quartz (SiO2)
Sedimentary / Mineral
Chert (Yellow Jasper/Flint pebble)
Microcrystalline Quartz (SiO2)
sedimentary
Polished white chalcedony or milky quartz pebble
Chalcedony, microcrystalline quartz (SiO₂), possibly with iron-oxide staining or a minor mineral inclusion
mineral
Chert / Flint
Cryptocrystalline quartz (SiO2)
sedimentary
Red Quartzite
Quartzite (Metamorphic quartz sandstone)
metamorphic
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Diamond in Kimberlite
Diamond in Kimberlite Matrix (Diamond: C, Kimberlite: complex Potassic Peridotite)
igneous
Chert (Jasper variety)
Silicon Dioxide (SiO2)
sedimentary
Pearl
Aragonite / Calcium Carbonate (CaCO3)
mineraloid
Diamond (Cluster Ring)
Carbon (C)
mineral
Chert (specifically Jasper or Flint)
Cryptocrystalline Quartz (SiO2)
sedimentary
Flower Agate
Chalcedony (SiO2) with inclusions
mineral
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
sedimentary
Coquina
Bioclastic Limestone (Coquina)
sedimentary
Onyx (Black) and Mother of Pearl Inlay
Silicon Dioxide (SiO2) for Onyx; Aragonite (CaCO3) for Mother of Pearl
mineral
Chert (varieties include Flint and Jasper)
Silicon Dioxide (SiO2)
sedimentary
Amethyst
SiO2 (Silicon Dioxide with iron impurities)
mineral
Moonstone (specifically Rainbow Moonstone / White Labradorite)
White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)
mineral
Chert (Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Polished blue stone, likely sodalite or dyed agate
Sodalite: Na₈(Al₆Si₆O₂₄)Cl₂; exact identification requires testing
mineral
Chert / Flint
Chert (varieties include Flint)
Sedimentary
Red Sandstone
Arenite (Iron-rich)
sedimentary
Amethyst
Amethyst (SiO2 - Silicon Dioxide with iron impurities)
Mineral
Clay (as a rock-forming material)
Clay minerals (e.g., Kaolinite group, Smectite group, Illite group, Chlorite group)
Mineral
Jasper
Silicon dioxide (SiO2) with impurities
sedimentary