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Rinkite-Ferrokentbrooksite 2.21 ct.

#4149

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45,00 €

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Rinkite-Ferrokentbrooksite 2.21 ct.

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Rinkite-Ferrokentbrooksite

The Rinkite is a brownish-yellow crystalline silicate of cerium.The formula is Na(Ca,Ce)2(Ti,Ce)(SiO4)2F and hardness 5.Here we have violet-brown crystals in Nepheline-Feldspar matrix associated with Ferrokentbrooksite. This mineral has a complex formula: Na15Ca6(Fe,Mn)3Zr3NbSi25O73(O,OH,H2O)3(Cl,F,OH)2 containing many rare earth elements. Radioactive.

From Skutesundskaier,Barkevik,Langesundsfjorden,Vestfold,Norway.

Rare stone for collectors.

Size:11.8x6.2x4.5 mm.

Weight:2.21 ct.

CODE#4149

OriginNorvegia

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