cobalt bloom

noun

, Mineralogy.

1. erythrite ( def 1 )

cobalt bloom

noun

1. another name for erythrite

Word History and Origins

Origin of cobalt bloom¹

First recorded in 1770–80

Example Sentences

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 Project Gutenberg