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HAUYNE [6 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2015-04-13

English

Subject field(s)
  • Mineralogy
DEF

Aluminosilicate, sulphate, and chloride of Ca and Na. an uncertain alteration product of haüyne.

French

Domaine(s)
  • Minéralogie
DEF

Silicate naturel voisin de la haüyne.

Spanish

Save record 1

Record 2 2013-07-30

English

Subject field(s)
  • Mineralogy
DEF

A variety of leucite tephrite with large leucite crystals associated with essential plagioclase and clinopyroxene with minor sanidine, nepheline and haüyne.

French

Domaine(s)
  • Minéralogie
DEF

Leucotéphrite, sodico-potassique, avec prédominance de la potasse sur la soude, et présentant souvent de très grands cristaux de leucite.

Spanish

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Record 3 2012-04-12

English

Subject field(s)
  • Mineralogy
DEF

A blue feldspathoid, crystallizing in the cubic system, consisting essentially of silicate of aluminum and sodium with sodium sulfate.

CONT

Hauyne can be distinguished by its isotropic nature, negative relief and poor cleavage(which is usually not observed in thin section). Low birefringence sections of nepheline resemble hauyne. Analcime is very similar but is not blue and has poor cubic cleavage. Fluorite has lower relief and good cubic cleavage. Hauyne can be distinguished from sodalite and nosean when it occurs as a strong blue variety, otherwise it is usually identified as sodalite.

French

Domaine(s)
  • Minéralogie
DEF

Minéral (feldspathoïde), du système cristallin cubique, se présentant en cristaux et grains bleu ciel à bleu foncé, translucides.

OBS

[Ce minéral] s'altère facilement en prenant des teintes brunes ou rouges. On la rencontre surtout dans les phonolites.

Spanish

Campo(s) temático(s)
  • Mineralogía
DEF

Aluminosilicato de sodio, con sulfato de calcio, que cristaliza en el sistema cúbico; es un mineral de color azul celeste, presente en las lavas sódicas [...]

Save record 3

Record 4 2012-01-05

English

Subject field(s)
  • Petrography
DEF

A volcanic rock... equivalent to leucitophyre or nephelinite for rocks that are rich in haüyne and nosean.

French

Domaine(s)
  • Pétrographie
DEF

[Lave de la famille des ijolites] à néphéline et augite, avec ou sans olivine, avec des phénocristaux [...] d'haüyne [...]

Spanish

Save record 4

Record 5 2011-05-16

English

Subject field(s)
  • Petrography
DEF

A variety of trachyandesite consisting essentially of andesine and haüyne with resorbed hornblende, augite and minor olivine.

French

Domaine(s)
  • Pétrographie
DEF

Variété de téphrite à haüyne qui tient son nom de la Banne d'Ordanche dans le Puy-de-Dôme.

OBS

Dans les différents diagrammes de classification internationale, les ordanchites occupent toujours le champ des trachyandésites, dont elles ne se distinguent que par la présence d’haüyne. Le terme «ordanchite», trop régional, est abandonné au profit de trachyandésites à haüyne. Dans tous les cas les termes, souvent utilisés, de «téphrite» et «téphrites à haüyne» se révèlent impropres à caractériser ces laves.

Spanish

Save record 5

Record 6 1977-02-16

English

Subject field(s)
  • Mineralogy
OBS

A feldspathoid mineral of the sodalite group.... It is grayish, bluish, or brownish, and is related to haüyne.

French

Domaine(s)
  • Minéralogie
OBS

Les cristaux macroscopiques sont rares; [...] d = 5,5, [la masse spécifique] passe par les valeurs 2,15 à 2,40 de sodalite à noséane. Teinte blanche, grise, jaune; l'haüyne est quelquefois bleutée. n = 1,48, l'éclat est gras, cassure conchoïdale [...]

Spanish

Save record 6

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