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ANFIBOL [1 record]

Record 1 2011-05-16

English

Subject field(s)
  • Mineralogy
  • Asbestos Mining
DEF

Any of a large group of structurally similar hydrated double silicate minerals ... containing various combinations of sodium, calcium, magnesium, iron, and aluminum.

CONT

The simplest amphiboles are orthorhombic, but the bulk of the amphiboles (including tremolite, actinolite, hornblende, and glaucophane) crystallize in the monoclinic system. These are widespread rock-forming minerals found in many types of igneous and metamorphic rock.

French

Domaine(s)
  • Minéralogie
  • Mines d'amiante
DEF

Métasilicate de calcium, magnésium et fer.

CONT

Les amphiboles constituent une famille de minéraux en prismes plus ou moins allongés, en aiguilles ou en fibres, à section transversale losangique, à angles tronqués, montrant deux clivages à 124°.

CONT

Les amphiboles sont des silicates de fer et de magnésium dont la structure est à doubles chaînes de tétraèdres SiO4.

CONT

Les inosilicates en ruban sont représentés par les amphiboles [...]

Spanish

Campo(s) temático(s)
  • Mineralogía
  • Minas de amianto
DEF

Cada uno de los numerosos silicatos de fórmula X7Si8O22(OH2) en la cual X es un elemento bivalente: hierro, magnesio, calcio, etc.

CONT

Los anfíboles pueden ser clasificados en tres grandes grupos: no aluminíferos, como la tremolita; aluminíferos, como la hornblenda [...]; sódicos o alcalinos, como la glaucofana.

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