18 sided beryl in matrix 
McGinnis Mine
Wentworth, New Hampshire 
approx. 7.3 x 4.5 x 4.1 cm 

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Neat specimen with 2 18-sided beryl crystal segments in microcline/pegmatite matrix.  Old material from the McGinnis Mine in Wentworth, New Hampshire.  Partial saw cut on the base.  

$85