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satin spar

American  

noun

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


Etymology

Origin of satin spar

First recorded in 1795–1805

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

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.

From Project Gutenberg

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

From Project Gutenberg

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

From Project Gutenberg

The beauty of vegetation denied those desolate buttes and ridges is atoned for by a marvelous abundance of most wonderful crystals of aragon110ite, calcite, barite and satin spar; each to itself, or two or more combined in beautiful geodes or else arranged in great flat slabs crystallized on both sides of a thin sheet of lime.

From Project Gutenberg

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.

From Project Gutenberg