Gyrolite

  
Brownish to colourless transparent rhombohedral calcite crystal measuring 26 mm across set on a matrix with crystallized balls of gyrolite to 8 mm in diameter and crystallized prehnite.
  
Gyrolite on calcite
Origin: Khandivali quarry, Mumbai (Bombay), Maharashtra, India
Sample size: 8.8 x 6.3 x 3.9 cm (top), 3.3 x 9.7 x 3.1 cm (bottom)
 

Photo courtesy of: 

Dan Weinrich

Dealer in fine mineral specimens

 

  
Origin: Malad Quarry, Bombay, Maharashtra, India
Sample size: 8.6 x 7.0 x 4.9 cm
 
  
 
  
 
  
Green gyrolite with apophyllite
  
On a matrix of basalt, drusy, white, quartz formed first followed by gray spheres of calcite, to 1.75 cm across, then glassy, colourless, quartz, to 2.5 cm in length, and lastly, balls of white gyrolite, to 3.25 cm across.
Origin: Jalgaon, Maharashtra, India
Sample size: 6.4 x 4.5 x 2.6 cm (top), 4.8 x 3.9 x 1.2 cm (2nd/3rd row), 5.3 x 4.1 x 2.5 cm (4th/5th row), 13.9 x 9.8 x 5.8 cm (6th/bottom row)
 
Origin: Bombay, Maharashtra, India
Ex. Steve Smale collection
Sample size: 4.9 x 4.6 x 1.9 cm
 

Photo courtesy of: 

Rob Lavinsky

The Arkenstone

 

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