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ALLOPHANE OPAL [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-04-20

English

Subject field(s)
  • Mineralogy
DEF

A whitish, yellowish, greenish or bluish coloured [mineral], resembling opal and allophane.

OBS

A mixture of diaspore, halloysite [and] variscite.

OBS

Material described by [Anton] Schrötter as opaline allophane from the vicinity of Freienstein, Styria, in 1837, was named “schrötterite” by [E. F.] Glocker in 1839.

Key term(s)
  • opalin-allophan
  • schrotterite

French

Domaine(s)
  • Minéralogie
DEF

Substance minérale appartenant au genre argile, variété d'allophane.

OBS

Mélange d'halloysite et de variscite (phosphate d'alumine). Décrit par Schrötter en 1837.

Spanish

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