erythrite

noun

1. a mineral, hydrous cobalt arsenate, Co3As2O8⋅8H2O, occurring as a powdery, usually red incrustation on cobalt minerals; cobalt bloom.
2. erythritol.

noun

1. Also called: cobalt bloom a pink to purple secondary mineral consisting of hydrated cobalt arsenate in monoclinic crystalline form. Formula: Co 3 (AsO 4) 2 .8H 2 O
2. another name for erythritol