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CA3FE2(SIO4)3 [1 record]
Record 1 - internal organization data 2010-11-26
Record 1, English
Record 1, Subject field(s)
- Mineralogy
- Gemmology
Universal entry(ies) Record 1
Record 1, Main entry term, English
- demantoid
1, record 1, English, demantoid
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- Uralian emerald 2, record 1, English, Uralian%20emerald
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
The green gemstone variety of the mineral andradite. 3, record 1, English, - demantoid
Record number: 1, Textual support number: 1 OBS
The gemstone Uralian emerald is also known as demantoid. In spite of its name, it is not a kind of emerald, but a type of garnet. The stone is [a] mineral andradite and is rich in both calcium and iron. The chemical formula for Uralian emerald is Ca3Fe2(SiO4)3. On the Moh's Hardness scale, this gem scores a 6.5. Most stones are very small in size, and gems larger that 1 gram are highly sought after. 2, record 1, English, - demantoid
Record 1, French
Record 1, Domaine(s)
- Minéralogie
- Gemmologie
Entrée(s) universelle(s) Record 1
Record 1, Main entry term, French
- démantoïde
1, record 1, French, d%C3%A9manto%C3%AFde
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- demantoïde 2, record 1, French, demanto%C3%AFde
correct, masculine noun
- émeraude de l'Oural 2, record 1, French, %C3%A9meraude%20de%20l%27Oural
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Variété verte de l'andradite. 3, record 1, French, - d%C3%A9manto%C3%AFde
Record number: 1, Textual support number: 1 OBS
Le démantoïde [...] produit des éclats de lumière caractéristiques, très beaux et intenses, avec une dispersion des rayons lumineux selon les différentes couleurs du spectre. En gemmologie, cette propriété est appelée «feux». C'est de cette caractéristique optique qu'il tire son nom de «démantoïde» qui signifie «ressemblant au diamant» [...] Le démantoïde a été découvert en Russie où il est également appelé «émeraude de l'Oural». 3, record 1, French, - d%C3%A9manto%C3%AFde
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Mineralogía
- Estudio de las gemas
Entrada(s) universal(es) Record 1
Record 1, Main entry term, Spanish
- demantoide
1, record 1, Spanish, demantoide
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 OBS
Variedad de granate cuyos cristales verdes se usan en joyería. 1, record 1, Spanish, - demantoide
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