Polyhalite with Sylvite, New Mexico

A beautiful cluster of red Polyhalite crystals with clear Sylvite from Carlsbad, Eddy County, New Mexico.

Polyhalite has a formula of K2Ca2Mg(SO4)4•2(H2O).  The name is From the Greek, polys meaning "much" and hals, meaning "salt," in allusion to the many salt components in the formula.

Sylvite, potassium chloride, has a formula of KCl.  The name is after the Dutch chemist, Sylvia de la Boe (1614-1672).

Measures 5 x 4.1 x 3.5 centimeters.

Polyhalite with Sylvite, New Mexico
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  • Item #: Polyhalite3-11-1
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Price $37.00
Availability In-Stock