Stilbite and Apophyllite Crystals on Matrix OTH 003

Stilbite and apophyllite crystals on matrix

Measurements:  185 x 125 x 70 mm

Description:  A beautiful group of stilbite and apophyllite crystals sit on a small conglomerate matrix. 

The only damage to the specimen appears to be at the edges. The specimen displays well on a flat surface.

Weight of Specimen:  1.22 kg

Chemical Composition:  (Na,Ca,K)4-9Al9Si27O72  n(H2O) (stilbite)
                                        KCa4Si8O20(OH,F)•8H2O (apophyllite) 

Hardness on Mohs Scale:  (stilbite)  3.5 – 4
                                          (apophyllite)  4.5-5)

Location:  India

Specimen Code:  OTH 003

R 2 500

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