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Gysinite-(Nd)

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SMM963985

Gysinite-(Nd)

Classic Locality
Rare Mineral

Description Tabs

Description
Locality: 
Sa Duchessa Mine, Oridda, Domusnovas, Carbonia-Iglesias Province, Sardinia, Italy
Class: 
Crystals on Matrix
Size Range: 
Micromount (under 1cm)
Size: 
0.9 × 0.6 × 0.5 cm
Description

Three well visible, pink crystals groups, of gysinite-(Nd) stay on blue chrysocolla matrix. Gysinite-(Nd) is a very rare mineral exclusive of only three mineralogical locality in the world, the only one from which, rarely, come samples on the market, is this of "Sa Duchessa". An appreciable micro because the crystals groups of crystals are well visible.

Just out of curiosity.
The known mineral species, with prevalent neodymium are about thirty.
This is one of three neodymium mineral species, shown in this auction, the others, which are always very rare are: schuilingite-(Nd) and Shabaite-(Nd).

Boxed with Label
Mineral Data
What's on the rock

Gysinite-(Nd)

Formula: 
Pb(Nd,La)(CO3)2(OH)·H2O
Strunz: 
5.DC.05
Hardness: 
4.0 - 4.5
Type Locality: 
Kasompi Mine (Menda Mine; Kasompi Hill), Swambo, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)

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