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Dickinsonite-(KMnNa)
Type Locality
Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield Co., Connecticut, USA
Mineral Data
{KNa}{Mn
2+
◻}{Ca}{Na
3
}{Mn
2+
13
}{Al}(PO
4
)
12
(
Strunz:
8.BF.05
Physical Properties
Hardness:
3.5 - 4.0
Tenacity:
very brittle
Synonyms
Synonyms:
Dickinsonite
