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Vauxite with Paravauxite and Childrenite viewBack to POST-DENVER FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday October 11th, 2018

Siglo XX mine, Llallagua, Bustillo Province, Potosi Department, Bolivia (type locality for two species)
  • Starting Time:10/4/2018 06:45:00 PM(CDT)
  • Ending Time:10/11/2018 06:45:00 PM(CDT)
  • Time Left:Auction Is Closed

  • Size:Miniature
  • Size Description:3.4 x 1.9 x 1.2 cm

Description:This piece is an attractive, well crystallized, ridiculously rare, specimen consisting of small, bladed, beautiful blue color, radiating aggregates of Vauxite coated by with tabular blades of translucent greenish-white Paravauxite plus "sugary" white Quartz on crumbly white clay (probably decomposed Allophane) matrix. There are also some very tiny spots of brownish-tan Childrenite on the specimen as well. I have photographed the crystals with a Canon MP-E 65 mm macro lens to show that they are truly terminated crystals and not just a mass. It is very difficult to obtain any specimens of these incredibly beautiful phosphates and to find two "Vauxite" species together on one piece is fantastic. This piece is from the type locality for Vauxite and Paravauxite which were originally discovered along the Contacto and San Jose veins in this mine and first described by Sam Gordon and Mark Bandy. It is so unbelievably rare to find good size, beautifully crystallized specimens of Vauxite and Paravauxite together from Bolivia.

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