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Rhodochrosite : MnCO3, Natrolite : Na2Al2Si3O10·2H2O, Microcline : KAlSi3O8

 
 
 
minID: 5WG-1L7

Rhodochrosite : MnCO3, Natrolite : Na2Al2Si3O10·2H2O, Microcline : KAlSi3O8

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This is a 7"x3 1/2" piece of syenite that contains a pipelike vug containing rhodocrosite, natrolite and microcline. The rhodocrosite is a deep hue of red, the largest crystal is about 20mm x20mm on the left. Just over it and to the right is a line of natrolite balls. The interior of the vug is lined with white microcline plates.

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Photo added: 14th Feb 2009

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