Rare Collection of Eleven Liddicoatite Slices
Lot 1397
Rare Collection of Eleven Liddicoatite Tourmaline Slices
US$ 20,000 - 30,000
£12,000 - 18,000
Auction Details
Lot Details
Rare Collection of Eleven Liddicoatite Tourmaline Slices
Anjanabonoina, Madagascar
Named for Richard T. Liddicot (1918-2003), a gemologist who invented the diamond grading system, in honor of his many contributions to the Gemological Institute of America, liddicoatite is a rare variety of tourmaline and Madagascar is its type locality.

It is found in stout crystals, striated along their lengths with astonishing and complex multi-colored color-zoning in triangular patterns, which are exposed when crystals are cut perpendicular to their elongation in cross-section slices as they are seen in this offering. These huge crystals are found in pegmatites in various parts of Madagascar.

This is a rare collection of consecutive slices from a very large crystal of classic hexagonal outline. Centering on a greenish-brown triangular formation, with a green exterior and complete crystal edges, each slice is polished on both sides. One can only imagine the overall size of the original crystal that would have such a sizeable diameter.

Mostly of hexagonal outline with the original crystal surfaces visible to the edges, several slices have pink cores within the green borders, polished on both sides. Sets of sequential slices of Liddicoatite are very rare and this is an exceptional offering. (11)
Total aggregate weight of all slices: 10,600 carats (2120 grams). Measures 6 x 6 in with a 4.0mm thickness

Footnotes

  • Illustration shows only ten of the eleven Liddicoatite slices.
Auction information

This auction is now finished. If you are interested in consigning in future auctions, please contact the specialist department. If you have queries about lots purchased in this auction, please contact customer services.

Buyers' Obligations

ALL BIDDERS MUST AGREE THAT THEY HAVE READ AND UNDERSTOOD BONHAMS' CONDITIONS OF SALE AND AGREE TO BE BOUND BY THEM, AND AGREE TO PAY THE BUYER'S PREMIUM AND ANY OTHER CHARGES MENTIONED IN THE NOTICE TO BIDDERS. THIS AFFECTS THE BIDDERS LEGAL RIGHTS.

If you have any complaints or questions about the Conditions of Sale, please contact your nearest customer services team.

Buyers' Premium and Charges

For all Sales categories excluding Arms & Armor, Coins & Medals, Motor Cars, Motorcycles, and Wine & Whisky:

Buyer's Premium Rates
25% on the first $100,000 of the Hammer Price
20% from $100,001 to $2,000,000 of the Hammer Price
12% on the excess over $2,000,000 of the Hammer Price

Payment Notices

Payment for purchases may be made in or by (a) cash, (b) cashier's check or money order, (c) personal check with approved credit drawn on a U.S. bank, (d) wire transfer or other immediate bank transfer, or (e) Visa, MasterCard, American Express or Discover credit, charge or debit card. A processing fee will be assessed on any returned checks. Please note that the amount of cash notes and cash equivalents that can be accepted from a given purchaser may be limited.

Shipping Notices

For information and estimates on domestic and international shipping as well as export licences please contact Bonhams Shipping Department.

Contacts
  1. Claudia Florian, G.J.G
    Auction Administration - Natural History
    Bonhams
    Work
    7601 W. Sunset Boulevard
    Los Angeles, United States 90046
    Work +1 323 436 5437
    FaxFax: +1 323 850 5843