cobalt bloom

American  

noun

Mineralogy.

1. erythrite

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cobalt bloom British  

noun

1. another name for erythrite

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Etymology

Origin of cobalt bloom

First recorded in 1770–80

Example Sentences

See Examples For:

cobalt bloom

As I looked over the shore, I noticed a great wall there was stained with cobalt bloom.

From Time Magazine Archive

Figuring that the converse should be true, he packed a Geiger counter and pushed up the Roxey Creek valley, 120 miles north of Vancouver, where fallen rock bearing cobalt "bloom" lay in the creek bed.

From Time Magazine Archive

Under weathering conditions these minerals oxidize readily to form asbolite, a mixture of cobalt and manganese oxides, and the pink arsenate, erythrite or "cobalt bloom."

From The Economic Aspect of Geology by Leith, C. K. (Charles Kenneth)

A popular term for a brightÐhued variety of some minerals; as, the roseÐred cobalt bloom.

From Webster's Unabridged Dictionary (2nd 100 Pages) by Webster, Noah