Gysinite-(Nd) Mineral Data

General Gysinite-(Nd) Information
Chemical Formula:	Pb(Nd,La)(CO3)2(OH)•(H2O)
Composition:	Molecular Weight = 505.15 gm
	Lanthanum 6.87 % La 8.06 % La₂O₃
	Hydrogen 0.60 % H 5.35 % H₂O
	Lead 41.02 % Pb 44.19 % PbO
	Carbon 4.76 % C 17.42 % CO₂
	Neodymium 21.42 % Nd 24.98 % Nd₂O₃
	Oxygen 25.34 % O
	______ ______
	100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:	PbNd_0.75La_0.25(CO₃)₂(OH)•(H₂O)
Environment:	Secondary mineral in the oxidized portions of rare-earth-bearing lead deposits.
IMA Status:	Approved IMA 1985
Locality:	Originally found on a museum specimen labelled as coming from Shinkolobwe; however the associated minerals indicate the specimen is more likely from the Kasompi mine, both in Katanga P Link to MinDat.org Location Data.
Name Origin:	Named for Marcel Gysin (1891-1974), Professor of Mineralogy, University of Geneva, Geneva, Switzerland.
Name Pronunciation:	Gysinite-(Nd)
Synonym:	ICSD 30968
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