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Cronstedtite - Brunita open pit, Sierra Minera de Cartagena-La Unión, La Unión, Murcia, Spain
(#:MINS8369)
Cluster with divergent sprays of Cronstedtite xls up to 3 mm on siderite matrix. A representative of the specimens from this classic Spanish mine. Ex
Francesco Bedognč
coll. #2163.
Formula :
Fe
4
2+
Fe
2
3+
[(OH)
8
/Fe
2
3+
Si
2
O
10
]
System:
hexagonal,trigonal,monoclinic
Hardness:
3˝
Rarity:
rare
Strunz id:8/H.27-120 - 8 : Silicates
Name origin:
After Axel Fredrik Cronstedt (1722-1765), Swedish chemist and mineralogist. This page provides mineralogical data about Cronstedtite.
Specimen weight:35 gr.
Crystal size:up to 3 mm
Overall size: 0mm x 0 mm x 0 mm
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