Moonstone (Variety of Orthoclase Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
Category
Browse man made object (ring) specimens identified by the Rock Identifier community.
Moonstone (Variety of Orthoclase Feldspar)
KAlSi3O8 (Potassium Aluminum Silicate)
Pearl (Biogenic Mineral)
Calcium Carbonate (primarily Aragonite) with Conchiolin; CaCO3
Yellow Diamond
Diamond (Carbon, C)
White Topaz
Aluminum Silicate Fluoride Hydroxide, Al2SiO4(F,OH)2
Peridot (Olivine)
(Mg,Fe)2SiO4 (Magnesium Iron Silicate)
Quartz Druzy Geode
Silicon Dioxide (SiO2)
Carnelian Agate
Carnelian (Silicon Dioxide: SiO2)
Bloodstone (Heliotrope)
Silicon Dioxide (SiO2) with inclusions of Hematite
Carnelian Agate
Carnelian (Silicon Dioxide - SiO2)
Sunstone
Oligoclase (Plagioclase Feldspar Group) - (Ca, Na)(Al, Si)4O8
Diamond
Carbon (C)
Carnelian
Carnelian (Silica, SiO2)
Carnelian Agate
Silicon Dioxide (SiO2) - variety of Chalcedony
Diamond
Diamond (C)
Carnelian and White Quartz Bracelet
Silicon Dioxide (SiO2) - specifically Carnelian (Chalcedony) and Rock Crystal/Snow Quartz
Smoky Quartz
Silicon Dioxide (SiO2)
Banded Agate (Carnelian variety)
Cryptocrystalline Quartz (SiO2)
Amethyst
Amethyst (variety of Quartz, SiO2)
Blue Topaz (specifically London Blue shade)
Topaz - Al2SiO4(F,OH)2
Diamond
C (Carbon)
Bloodstone (also known as Heliotrope)
Silicon Dioxide (SiO2) - variety of Chalcedony
Turquoise
Hydrous phosphate of copper and aluminium [CuAl6(PO4)4(OH)8·4H2O]
Amethyst
SiO2 (Silicon Dioxide with Iron impurities)
Carnelian
Carnelian Chalcedony (SiO2 with iron oxide impurities)
Aquamarine
Beryllium Aluminum Silicate (Be3Al2Si6O18)
Pink Sapphire
Corundum (Al2O3 with Chromium/Titanium/Iron traces)
Precious Opal
Hydrated Silica (SiO2·nH2O)
Diamond
Diamond (pure Carbon, C)
Moss Agate
Silicon Dioxide (SiO2) with inclusions of hornblende or chlorite
Rough Diamond
Diamond (C)
Citrine
Citrine (Silicon Dioxide - SiO2)
Jadeite (Jade)
Jadeite (NaAlSi2O6)
Sunstone
Plagioclase feldspar (with Copper or Hematite inclusions)
Carnelian
Carnelian (Silicon Dioxide - SiO2)
Diamond (or Lab-Grown Cubic Zirconia)
Carbon (C)
Aquamarine
Beryl (Be3Al2Si6O18 with iron impurities)
Amethyst
Silicon Dioxide (SiO2) with iron impurities
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Pearl (as a biogenic mineral/gemstone)
Calcium Carbonate (mostly Aragonite), CaCO3
Amethyst (as a jewelry accent)
Amethyst (Silicon Dioxide SiO2 with Iron impurities)
Carnelian
Carnelian (SiO2 - Silicon Dioxide with Iron Oxide impurities)
Blue Sapphire
Corundum (Al2O3 - Aluminum Oxide)