Scolecite and Heulandite Geode from India

Scolecite and Heulandite Geode from Deccan Traps, India.
 
 Rare mineral !
 Museum piece, unique ! Called by some of my mineralogist friends and museum director "the Little Naica" in reference to the Naica Cave in Mexico .
 Ideal for connoisseurs looking for excellence , this Geode of  Scolecite will bring satisfaction.
 It deserves its place in the most refined collections or the most prestigious showcases .
 
 Origin: Deccan Traps, Bombay Mine, Mumbai District, India.
 Size: 12cm by 9cm by 8cm
 Chemical formula: Ca(Al2Si3O10).3H2O
 Crystal System: Monoclinic
 Hardness Mohs scale: 5.5
 Definition: Scolecite is a mineral species of the group of silicates . It is part of the zeolite family, it is the calcium equivalent of natrolite . The crystals can reach up to thirty centimeters.