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Heterosite xl (large and rare) Whitmore Coll. 
Back to Weekly COLLECTION LIQUIDATION AUCTIONS - Jan 19, 2012
Fletcher Mine, Groton, Grafton Co., New Hampshire
- Starting Time:1/13/2012 06:00:00 PM(CST)
- Ending Time:1/19/2012 06:36:38 PM(CST)
Time Left:Auction Is Closed
- Size:6.4 x 5.6 x 4.3 cm
- Size Description:Small Cabinet
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 good lustre and pretty lavender color. It is rare from this well-known Groton pegmatite and this is a huge crystal from the mine owners collection. Ex Robert Whitmore Collection # 3360, collected in 1968 and obtained by Whitmore in 1992.
