Rastsvetaevite 2.49 ct.
  • -20%
Rastsvetaevite 2.49 ct.

Rastsvetaevite 2.49 ct.

#8888
€56.00 €70.00 -20%
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Rastsvetaevite 2.49 ct.

 

Rastsvetaevite

is a rare mineral of the eudialyte group with the formula Na27K8Ca12Fe3Zr6Si4[Si3O9]4[Si9O27]4(O,OH,H2O)6Cl2. Its structure is modular. It is only the third member of the group after andrianovite and davinciite with essential (site-dominating) potassium. Potassium and sodium enter both N4 and M2 sites. The mineral is named after Russian crystallographer Ramiza K. Rastsvetaeva.( from Wikipedia).

The hardness is the same as the Eudialyte: 5-6.

Translucent with fractures.

It comes from Kola, Khibiny massif, Mt. Rasvumchorr.

Size: 8.8x7.8x5.4 mm.

Weight: 2.49 ct.

CODE#8888

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