satin spar

noun

Mineralogy.

1. a fibrous variety of gypsum having a silky luster, used as a gem.

Word History and Origins

Origin of satin spar¹

First recorded in 1795–1805

Example Sentences

Satin spar is found in this parish; there is also a pool on Gildersdale Fell, the slime of which is used for painting The slime of a pool use for painting yellow. yellow.

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Satin spar is still another variety often seen in mineral collections.

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The interior may be a bright green or lemon yellow, or perhaps the two in combination, while others yet may be either of these varieties with the addition of flat crystals of almost transparent satin spar.

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It is an immense great fallen rock on whose dark surface are scattered transparent flake-like crystals of satin spar, resembling the congealed drops of a summer shower.

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The stalactites here are very beautiful, assuming the structure of satin spar.

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