01 The mineral atlas02 Minerals A–Z03 Mines & localities04 Field notes05 ExpeditionsDiscover / Minerals A–Z / Arsenate Erythrite. Sometimes called cobalt bloom, erythrite forms during alteration of cobalt-bearing mineral deposits. The pink can be delicate; the mineral itself is soft, too.
Erythrite from the Bou Azzer district, Morocco. Rob Lavinsky / iRocks.com · CC BY-SA 3.0 . Image unchanged. Co₃(AsO₄)₂ · 8H₂O
Mineral family Arsenate
Crystal system Monoclinic
Mohs hardness 1½–2½
Colour Pink to crimson
Typical appearance Blades, radiating groups and powdery coatings. Find it in the atlas. Bou Azzer These are selected documented associations, not an exhaustive distribution. A photograph or colour match alone cannot confirm identification.
Mineralogical reference ↗ Read: Look before you name Display with care. This mineral contains arsenic. Avoid dust and ingestion; keep away from food and young children.
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