Heterosite xl (large and rare) ex. Whitmore Coll.

Palermo No. 2 Mine, Groton, Grafton Co., New Hampshire
Small Cabinet, 7.5 x 4.2 x 3.1 cm
Start Time: 05/07/2011 6:30:00 pm (CDT)
End Time: 05/12/2011 6:30:00 pm (CDT)
Auction Closed

Item Description

Heterosite is a member of the Triphylite Group and Heterosite-Purpurite Series. The species of this series are secondary minerals formed by oxidation of iron and or manganese with the simultaneous leaching of lithium from primary phosphates (precursors). This is a huge and rare, equant, orthorhombic crystal with moderate luster and pretty lavender color. It is very rare from this particular Palermo pegmatite and this is a huge crystal from the mine owners collection. Ex Robert Whitmore Collection # 4272, with a 1998 date.

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