TERMIUM Plus®

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

AL2SI2O5(OH)4 [3 records]

Record 1 2012-04-19

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
Al2Si2O5(OH)4
formula, see observation
DEF

A clay mineral of the kaolinite-serpentinite group with three polymorphs, halloysite, kaolinite and nacrite.

CONT

Prior to dickite being established as a new mineral species by Ross and Kerr (1930) there was considerable confusion in the literature with kaolinite, nacrite and dickite all described under the name kaolinite. ... The type locality for dickite is Pant-y-Gaseg Mine, Trwyn-Bychan, Anglesey. This mineral is most commonly found in hydrothermal vein deposits and as an authigenic mineral (a mineral which has grown after the sediment was deposited) in sedimentary rocks.

OBS

Dickite is named after Allan B. Dick, who provided a detailed description of this mineral from Trwyn-Bychan in northern Anglesey (Dick 1888, 1908).

OBS

Chemical formula: Al2Si2O5(OH)4

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
Al2Si2O5(OH)4
formula, see observation
DEF

Minéral (silicate d'aluminium hydraté) du système cristallin monoclinique [ayant] la même composition chimique que la kaolinite, l'halloysite et la nacrite, avec lesquelles elle est groupée et desquelles elle diffère par des détails au niveau de la structure atomique ainsi que par certaines propriétés physiques.

OBS

Formule chimique : Al2Si2O5(OH)4

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
Al2Si2O5(OH)4
formula, see observation
DEF

Silicato de aluminio hidratado perteneciente al grupo de la caolinita.

OBS

Fórmula química: Al2Si2O5(OH)4

Save record 1

Record 2 2011-06-20

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
Al2Si2O5(OH)4
formula, see observation
DEF

A claylike aluminum silicate ... resembling kaolinite but amorphous, and containing more water.

OBS

Chemical formula: Al2Si2O5(OH)4

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
Al2Si2O5(OH)4
formula, see observation
DEF

Minéral colloïdal voisin du kaolin, constitué de silicate d'aluminium amorphe.

CONT

L'halloysite est un minéral argileux de même structure que la kaolinite mais les feuillets sont séparés par une couche de molécules d'eau [...]

OBS

Formule chimique : Al2Si2O5(OH)4

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
Al2Si2O5(OH)4
formula, see observation
DEF

Aluminosilicato hidratado [...], que cristaliza en el sistema monoclínico; es un mineral arcilloso, un caolín hidratado, de color generalmente opalino y de fractura concoidea [...]

OBS

Fórmula química: Al2Si2O5(OH)4

Save record 2

Record 3 2011-04-21

English

Subject field(s)
  • Mineralogy
Universal entry(ies)
Al2Si2O5(OH)4
formula, see observation
DEF

A clay mineral of the kaolin subgroup with a 1:1 layer structure composed of shared sheets of Si-O tetrahedrons and Al-(O,OH) octahedrons with very little isomorphous substitution.

OBS

Chemical formula: Al2Si2O5(OH)4

French

Domaine(s)
  • Minéralogie
Entrée(s) universelle(s)
Al2Si2O5(OH)4
formula, see observation
DEF

Silicate d'alumine hydraté [...] qui se présente sous forme de cristaux du système triclinique de très petites dimensions et de couleur blanche.

OBS

Formule chimique : Al2Si2O5(OH)4

Spanish

Campo(s) temático(s)
  • Mineralogía
Entrada(s) universal(es)
Al2Si2O5(OH)4
formula, see observation
DEF

Silicato hidratado de aluminio [...] que cristaliza en el sistema monoclínico; es un mineral blanco, constituyente esencial de ciertas arcillas, especialmente del caolín.

OBS

Fórmula química: Al2Si2O5(OH)4

Save record 3

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