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(FE MN)(NB TA)2O6 [1 record]
Record 1 - internal organization data 2011-07-29
Record 1, English
Record 1, Subject field(s)
- Mineralogy
Universal entry(ies) Record 1
Record 1, Main entry term, English
- columbite
1, record 1, English, columbite
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
- niobite 2, record 1, English, niobite
correct
- greenlandite 2, record 1, English, greenlandite
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A black orthorhombic mineral which consists of a natural niobotantalate of iron and manganese; an ore of niobium as well as a source of tantalum. 3, record 1, English, - columbite
Record number: 1, Textual support number: 1 CONT
Placer minerals ... include: cassiterite, chromite, columbite, copper, garnet, gold, ilmenite, magnetite, monazite, platinum, ruby, rutile, sapphire, xenotime and zircon. 4, record 1, English, - columbite
Record number: 1, Textual support number: 1 OBS
The term "dianite" (given as a synonym by some authors) is in fact a variety of columbite. 3, record 1, English, - columbite
Record number: 1, Textual support number: 2 OBS
Chemical formula: (Fe,Mn)(Nb,Ta)2O6 or (Fe,Mn,Ti,Ta)Nb2O6 3, record 1, English, - columbite
Record 1, French
Record 1, Domaine(s)
- Minéralogie
Entrée(s) universelle(s) Record 1
Record 1, Main entry term, French
- columbite
1, record 1, French, columbite
correct, feminine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
- colombite 2, record 1, French, colombite
correct, feminine noun
- niobite 3, record 1, French, niobite
correct, feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Niobotantalate naturel de fer et de manganèse, utilisé comme minerai de niobium (ou colombium). 4, record 1, French, - columbite
Record number: 1, Textual support number: 1 OBS
Ces minéraux sont orthorhombiques et se présentent souvent en petits cristaux, soit tabulaires (columbite) [...] La teinte est brun-acier avec des réflexions internes rougeâtres pour les types à Mn, d = 6 à 6,5, [la masse spécifique] va de 5,20 (type à Cb) à 8,0 (type à Ta). [...] souvent paramagnétiques. [...] Ce sont des minéraux de pegmatites, associées aux tourmalines, béryl, lépidolites, apatite, etc., souvent aussi topaze, wolframite, cassitérite. 5, record 1, French, - columbite
Record number: 1, Textual support number: 2 OBS
Étymologie : de la localité de Columbia (États-Unis) où le minéral a d'abord été découvert. 6, record 1, French, - columbite
Record number: 1, Textual support number: 3 OBS
Formule chimique : (Fe,Mn)(Nb,Ta)2O6 ou (Fe,Mn,Ti,Ta)Nb2O6 6, record 1, French, - columbite
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Mineralogía
Entrada(s) universal(es) Record 1
Record 1, Main entry term, Spanish
- columbita
1, record 1, Spanish, columbita
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
- niobita 1, record 1, Spanish, niobita
correct, feminine noun
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Niobiotantalato de hierro y manganeso que es uno de los constituyentes de las pegmatitas; este mineral negruzco, que cristaliza en el sistema rómbico [...] es la mena más importante del niobio. 1, record 1, Spanish, - columbita
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