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SIO2•NH2O [1 record]
Record 1 - internal organization data 2011-01-11
Record 1, English
Record 1, Subject field(s)
- Mineralogy
- Gemmology
- Jewellery
Universal entry(ies) Record 1
Record 1, Main entry term, English
- opal
1, record 1, English, opal
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A noncrystalline, transparent to opaque hydrous silica, occurring in nearly all colors. 2, record 1, English, - opal
Record number: 1, Textual support number: 1 OBS
[This] mineral ... has been shown by electron diffraction to consist of packed spheres of silica; some so-called opal gives weak X-ray patterns of cristobalite or tridymite. 3, record 1, English, - opal
Record number: 1, Textual support number: 2 OBS
Chemical formula: SiO2•nH2O 4, record 1, English, - opal
Record 1, French
Record 1, Domaine(s)
- Minéralogie
- Gemmologie
- Joaillerie et bijouterie
Entrée(s) universelle(s) Record 1
Record 1, Main entry term, French
- opale
1, record 1, French, opale
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Variété de silice, sans système cristallin (amorphe), se présentant en nodules et concrétions, formée de petits cristaux disposés sans ordre et contenant de 6 à 10 % d'eau. 2, record 1, French, - opale
Record number: 1, Textual support number: 1 CONT
L'opale, autre variété de silice, a longtemps été considérée comme amorphe. En réalité, l'opale est faite de cristallites, de cristobalite et de tridymite désordonnées. 3, record 1, French, - opale
Record number: 1, Textual support number: 1 OBS
Formule chimique : SiO2•nH2O 4, record 1, French, - opale
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Mineralogía
- Estudio de las gemas
- Artículos de joyería
Entrada(s) universal(es) Record 1
Record 1, Main entry term, Spanish
- ópalo
1, record 1, Spanish, %C3%B3palo
correct, masculine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Sílice hidratada o gelatinosa, cuya fórmula es SiO2 más H2O en cantidad variable. 1, record 1, Spanish, - %C3%B3palo
Record number: 1, Textual support number: 1 CONT
El ópalo se encuentra en las cavidades de las rocas magmáticas y sedimentarias en forma de venas o de masas blancas, amarillentas, verdes, pardas o rojizas. Es un verdadero coloide que contiene de 3 a 13 % de agua, un mineral vítreo, de fractura concoidea, aspecto lechoso y reflejos irisados, cuyas variedades más hermosas constituyen gemas apreciadas para joyas y objetos artísticos. 1, record 1, Spanish, - %C3%B3palo
Record number: 1, Textual support number: 1 OBS
Fórmula química: SiO2•nH2O 1, record 1, Spanish, - %C3%B3palo
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