Stevensite

Langban, Varmland, Sweden
Small Cabinet, 8.9 x 5.9 x 4.4 cm
Start Time: 02/12/2009 8:15:00 pm (CST)
End Time: 02/19/2009 8:15:00 pm (CST)
Auction Closed
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Item Description

First identified in specimens from a railway tunnel in at Bergen Hill in Hudson County, New Jersey, (Ca0.5,Na)0.33(Mg,Fe++)3Si4O10(OH)2 ?n(H2O), Stevensite is a little-known phyllosilicate in the smectite group. This is an old specimen from Langban - with an old label calling it "Aphrodite." It is not the most beautiful mineral specimen - they never are - but they are rare on the market.

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