Epistilbite

  

  

  

Vugs filled with zeolites, including epistilbite, chabazite, okenite, gyrolite and laumontite, calcite and quartz

Origin: Khandivali Quarry, Bombay, Maharashtra, India

Sample size: 10.5 x 8.5 x 5.5 cm

 

  

Origin: Berufjord, Iceland (type locality)

Sample size: 6.9 x 6.0 x 3.7 cm

 

  

Origin: Grootberg, Northern Namibia

Ex. Charlie Key collection

Sample size: 4.7 x 3.2 x 2.8 cm

 

  

 

  

Light, emerald green, translucent, and lustrous fluorapophyllite, to 4.0 cm across, formed first. Then, came ivory colored, lustrous and translucent, epistilbite in spherical growth, measuring more than 5.0 cm across; at the same time as growth of pearlescent, lustrous, translucent, epistilbite crystals, measuring up to 2.0 cm in length.

Origin: Jalgaon, Maharashtra, India

Sample size: 10.5 x 5.8 x 4.6 cm (top), 13.2 x 9.6 x 7.4 cm (2nd/bottom row)

 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone