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Natropharmacosiderite
Type Locality
Marda oxidized zone, Koolyanobbing, Yilgarn Shire, Western Australia, Australia
Mineral Data
(Na,K)Fe
3+
4
(AsO
4
)
3
(OH)
4
·6-7H
2
O
Strunz:
8.DK.10
Physical Properties
Hardness:
3.0
Tenacity:
brittle
