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TONSTEIN CRISTALLIN [1 record]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2012-03-02

English

Subject field(s)
  • Petrography
  • Classification of Coal
DEF

[A rock which] contains vermicular, prismatic or tabular kaolinite crystals, may be either light or dark in colour according to the proportion of contained carbonaceous matter.

French

Domaine(s)
  • Pétrographie
  • Classification des charbons
DEF

Cristal de kaolinite columnaire, vermiculaire et tabulaire, plus clair ou plus foncé selon qu'il contient plus ou moins de matières humiques.

OBS

tonstein : Roche sédimentaire argileuse.

Spanish

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