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- Demantoid abstract "Demantoid is the green gemstone variety of the mineral andradite, a member of the garnet group of minerals. Andradite is a calcium- and iron-rich garnet. The chemical formula is Ca3Fe2(SiO4)3 with chromium substitution as the cause of the demantoid green color. Ferric iron is the cause of the yellow in the stone.It has the misnomers olivine, and Uralian emerald.In approximately 2003, reports began to circulate in the trade that some Russian demantoid garnets were being routinely subjected to heat treatment in order to enhance their color. Such treatment is believed to be performed at relatively low temperatures and is thought not to be detectable by gemological testing.".
- Demantoid thumbnail Demantoid_-_Mineralogisches_Museum_Bonn_(7301).jpg?width=300.
- Demantoid wikiPageExternalLink demantoi.htm.
- Demantoid wikiPageExternalLink min-1258.html.
- Demantoid wikiPageID "1584447".
- Demantoid wikiPageRevisionID "568563534".
- Demantoid caption "Demantoid".
- Demantoid color "light to deep green".
- Demantoid dispersion "0.057".
- Demantoid formula "Ca3Fe2Si3O12".
- Demantoid gravity "3.84".
- Demantoid hasPhotoCollection Demantoid.
- Demantoid impurities "Cr".
- Demantoid luster "adamantine".
- Demantoid mohs "6.5".
- Demantoid name "Demantoid".
- Demantoid opticalprop "Single Refractive".
- Demantoid pleochroism "none".
- Demantoid refractive "1.88".
- Demantoid system "cubic".
- Demantoid wordnet_type synset-mineral-noun-1.
- Demantoid subject Category:Calcium_minerals.
- Demantoid subject Category:Cubic_minerals.
- Demantoid subject Category:Garnet_group.
- Demantoid subject Category:Gemstones.
- Demantoid subject Category:Iron_minerals.
- Demantoid type ChemicalSubstance.
- Demantoid type Mineral.
- Demantoid type ChemicalObject.
- Demantoid type Thing.
- Demantoid comment "Demantoid is the green gemstone variety of the mineral andradite, a member of the garnet group of minerals. Andradite is a calcium- and iron-rich garnet. The chemical formula is Ca3Fe2(SiO4)3 with chromium substitution as the cause of the demantoid green color.".
- Demantoid label "Demantoid".
- Demantoid label "Demantoid".
- Demantoid label "Демантоид".
- Demantoid sameAs Démantoid.
- Demantoid sameAs Demantoid.
- Demantoid sameAs m.05dcjb.
- Demantoid sameAs Q2414437.
- Demantoid sameAs Q2414437.
- Demantoid wasDerivedFrom Demantoid?oldid=568563534.
- Demantoid depiction Demantoid_-_Mineralogisches_Museum_Bonn_(7301).jpg.
- Demantoid isPrimaryTopicOf Demantoid.
- Demantoid name "Demantoid".