clarain


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Related to clarain: Clarin

clar·ain

 (klăr′ān)
n.
A band in bituminous coal, characterized by a sheetlike irregular fracture, a silky luster, and fine intercalations of durain.

[Latin clārus, bright; see kelə- in Indo-European roots + (fus)ain.]

clarain

(ˈklæreɪn)
n
(Minerals) one of the four major lithotypes of banded coal
References in periodicals archive ?
Macroscopic compositions of coal refer to the basic unit of coal that can be distinguished by the naked eye, which can be divided into vitrain, clarain, durain, and fusain.