Red Garnet
Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)
Category
Browse man made object (ring) specimens identified by the Rock Identifier community.
Red Garnet
Almandine and Pyrope (Silicate minerals: Fe3Al2(SiO4)3 and Mg3Al2(SiO4)3)
Petrified Wood (Jet or Coalified Wood appearance)
Silicified wood (principally SiO2) or Carbonized Wood
Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)
Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement
Diamond (in a gold ring setting)
Carbon (C)
Diamond (set in a gold ring)
Carbon (C) - Adamantine cubic carbon
Moonstone (in a halo ring setting)
Orthoclase Feldspar (containing alternating layers of Albite), (KAlSi3O8)
Lapis Lazuli
A metamorphic rock primarily composed of lazurite (Na,Ca)8[(S,SO4,Cl)2|(Al6Si6O24)], calcite (CaCO3), and pyrite (FeS2).
Obsidian
Volcanic glass (SiO2 - Silicon Dioxide)
Carnelian
Carnelian (a variety of Chalcedony, SiO2)
Jade (Nephrite or Jadeite)
Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2 - a variety of actinolite, an amphibole mineral); Jadeite (Na(Al,Fe3+)Si2O6 - a pyroxene mineral)
Amethyst
SiO2 (Silicon Dioxide) - a variety of Quartz
Engineered Quartz Stone
Agglomerated Quartz (SiO2 + Polymer Resin)
Moonstone
Orthoclase Feldspar (composed of alternate layers of orthoclase and albite), (K,Na)AlSi3O8
Labradorite
Labradorite ((Ca, Na)(Al, Si)4O8)
Nephrite Jade
Nephrite (Ca2(Mg, Fe)5Si8O22(OH)2)
Carnelian Agate
Carnelian (SiO2 with iron oxide impurities)
Obsidian
Volcanic Glass (Amorphous Silicon Dioxide)
Banded Calcite (often sold as Caribbean Calcite or Mexican Onyx)
Calcium Carbonate (CaCO3)
Tiger's Eye
Pseudomorph of quartz after crocidolite (SiO2)
Nephrite Jade
Nephrite
Amazonite
Amazonite (KAlSi3O8 - Microcline)
Chrysoprase
Silicon dioxide (SiO2) with nickel impurities
Diamond
Diamond (pure Carbon, C)
Carnelian Agate
Chalcedony (SiO2) with iron oxide inclusions
Carnelian
SiO2 (Chalcedony with iron oxide impurities)
Carnelian
SiO2 (Silicon Dioxide), a variety of Chalcedony
Fossilized Coral (Coquina/Limestone)
Cnidaria Anthozoa (Fossilized)
Coquina
Bioclastic Limestone
Quartz
Silicon Dioxide (SiO2)
Sandstone with Liesegang Rings
Arenite with Iron Oxide Liesegang Banding
Granite
Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)
Sandstone (Pet Rock)
Clastic sedimentary rock (primarily SiO2)
Amazonite
Potassium Feldspar (Microcline) - K(AlSi3O8)
Amazonite
Amazonite (KAlSi3O8)
Amazonite
K(AlSi3O8) - Microcline (Var. Amazonite)
Black Spinel
Magnesium Aluminum Oxide (MgAl2O4)
Jasper
Jasper (Silicon Dioxide, SiO2)
Jasper
Silicon Dioxide (SiO2)
Gold (Processed)
Gold (Au)
Granite
Phaneritic Igneous Rock (composed primarily of Quartz, Alkali Feldspar, and Plagioclase)
Diabase (Greenstone)
Diabase (also known as Dolerite)
Chert (specifically Tan/Gray Chert)
Microcrystalline quartz (SiO2)