The Government of Canada’s terminology and linguistic data bank.

ALLANITE [1 record]

Record 1 2011-06-03


Subject field(s)
  • Mineralogy

A monoclinic, cerium-bearing mineral of the epidote group: (Ce,Ca,Y)(Al,Fe)3(SiO4)3(OH) [which] is typically an accessory mineral in igneous rocks (granite, syenite, diorite, pegmatite) and in their metamorphic equivalents.


Uraninite is the only primary uranium mineral. It is disseminated through the rocks as ovoid grains which have their greatest concentration in allanite and stillwellite.


allanite: Named after T. Allan who discovered the mineral.


  • Minéralogie

Silicate naturel de composition chimique complexe et de symétrie monoclinique, contenant, avec de l'aluminium, du fer, du magnésium, du calcium, du cérium, du lanthane, du néodyme, du praséodyme.


Épidotes. Ce sont des éléments d'altération de bien des éléments de roches. [...] Elles sont généralement monocliniques. On distingue plusieurs variétés : la pistacite, [...] le thulite, l'allanite.


Étymologie : dédiée à T. Allan, minéralogiste écossais qui découvrit l'espèce. Orthite vient du grec orthos, «droit» (pour la forme des cristaux).


Campo(s) temático(s)
  • Mineralogía

Silicato hidratado muy complejo, puesto que contiene aluminio, hierro, magnesio, calcio, cerio, lantano y sodio, y a veces itrio, erbio y didimio; cristaliza en el sistema monoclínico.

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