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Delhayelite
Type Locality
Mt Shaheru, Mt Nyiragongo, Goma, Kivu, Democratic Republic of Congo (Zaïre)
Mineral Data
(Na,K)
10
Ca
5
Al
6
Si
32
O
80
(Cl
2
,F
2
,SO
4
)
3
·18H
2
O
Strunz:
9.EB.10
Physical Properties
Crystal System:
Orthorhombic
Hardness:
0.0
