Heulandite

  

  

This specimen of chloritically altered basalt hosts numerous lustrous crystals of satiny white heulandite. The largest crystals are 1.4 cm in length.

Origin: Cascadia, Linn County, Oregon, U.S.A.

Sample size: 12.5 x 7.2 x 6.1 cm

 

  

Heulandite on mordenite

Origin: Rats Nest Claim, Custer Co., Idaho, U.S.A.

Sample size: 11.4 x 7.5 x 6 cm

 

  

This specimen consists of adjoined crystals of heulandite included with chlorite (?). The inlcusions are reposnsible for the avacado green colour. The largest crystal is 2.7 cm across.

Origin: Ahmednegar, India

Sample size: 6.5 x 3.6 x 2.5 cm

 

Photo courtesy of: 

Trinityminerals.com

 

Origin: Maharashtra, India

Sample size: 3 x 2.1 x 1.5 cm

 

  

  

Heulandite on apophyllite

Origin: Jalgaon, Maharashtra, India

Ex. Gary Hansen collection

Sample size: 14.0 x 7.7 x 7.7 cm

 

  

Origin: Campos Novos, Santa Catarina, South Region, Brazil

Sample size: 9 x 7 x 4 cm

 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

  

Heulandite on quartz

Origin: Crispalt, Sedrun, Switzerland

Sample size: 6 x 4 x 3.5 cm

 

  

Origin: Garrawilla, New South Wales, Australia

Sample size: 3.4 x 4.5 x 1.5 cm

 

  

Origin: Harbourville, Nova Scotia, Canada

Sample size: 11 x 7 x 4.5 cm

 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

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