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Hureaulite (ex Rolando Gioia Collection) viewBack to POST-TUCSON FINE MINERAL COLLECTION and INVENTORY LIQUIDATION AUCTION (set 2 of 2) - FEATURING SPECIMENS FROM THE KAY ROBERTSON COLLECTION - end Thursday March 29th, 2018

Jocao pegmatite (Cigana claim), Conselheiro Pena, Minas Gerais, Brazil
  • Starting Time:3/22/2018 06:45:00 PM(CDT)
  • Ending Time:3/29/2018 06:47:37 PM(CDT)
  • Time Left:Auction Is Closed

  • Size:Small Cabinet
  • Size Description:8.6 x 8.3 x 7.2 cm

Description:Hureaulite is a rare and beautiful manganese phosphate was named in 1825 after the type locality, a village in France by the name of Hureaux. Arguably the best and most well-known samples are those from the Jocão pegmatite in Brazil with their glowing electric orange-pink color crystals in larger sized crystals (most other Hureaulites are micro crystals from various localities around the world). This piece is a superb, classic display specimen of Hureaulite featuring sharp, parkling, lustrous, translucent, vibrant orange-pink colored monoclinic crystal groups. The matrix is a mix of golden Muscovite and I believe the dark brownish mineral is Rockbridgeite or possibly Phosphosiderite(?) and the grey-blue mineral is Strengite. No real damage to the Hureaulites, and they look beautiful close up. A very worthwhile specimen of this hard to find material, from arguably the best location for the species in terms of the size and color of the crystals. From the collection of Rolando Gioia (a contributor to new definitive book on Brazilian minerals: "Minerais e Pedras Preciosas do Brasil").

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