Uralian emerald

Uralian emerald
demantoid: not a true emerald.

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      yellowish green or emerald-green andradite, a variety of garnet, not emerald. See andradite.

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Universalium. 2010.

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Look at other dictionaries:

  • uralian emerald — noun Usage: usually capitalized U : demantoid * * * demantoid: not a true emerald …   Useful english dictionary

  • Important gemstones — ▪ Table Important gemstones mineral gem name colour Mohs hardness* specific gravity* beryl aquamarine sky blue to greenish blue 7½–8 2.68–2.71 emerald green 2.68–2.74 goshenite colourless; greenish yellow, yellow green, brownish same as… …   Universalium

  • Demantoid — General Category Mineral …   Wikipedia

  • demantoid — /di man toyd/, n. Mineral. a brilliant green variety of andradite garnet, used as a gem. Also called Uralian emerald. [1890 95; < G, equiv. to (obs.) Demant DIAMOND ( < MHG diemant < OF diamant) + oid OID] * * * …   Universalium

  • Ural Mountains — a mountain range in the W Russian Federation, extending N and S from the Arctic Ocean to near the Caspian Sea, forming a natural boundary between Europe and Asia. Highest peak, Mt. Narodnaya, 6214 ft. (1894 m). Also called Urals. * * * Mountain… …   Universalium

  • andradite — /an dreuh duyt /, n. a mineral, calcium iron garnet, Ca3Fe2Si3O2, occurring in brown, green, or black crystals. [1830 40; named after J. B. de ANDRADA E SILVA; see ITE1] * * * ▪ gemstone  calcium iron garnet, perhaps the most spectacular garnet… …   Universalium

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