RASPBERRY AMETHYST GEODE SLICE Quartz, Variety: Amethyst & Rose quartz Rio Grande do Sul, South Region, Brazil H. 21 in - W 19.5 in Most of the amethyst "geodes" from the Brazil-Uruguay border feature varying amounts of amethyst and agate with an occasional selenite or calcite in the interior. This particular geode contains a few amethyst crystals that have been over-coated with bright druzy crystals of rose quartz, giving this uncommon specimen a rich raspberry- colored interior. In some areas the rose quartz stands alone, coating the inner walls of banding agate, creating an aesthetic concentric pattern.

Composed of several subsidiaries, the Drouot Group is a major player in the art market. Hôtel Drouot, located in the heart of Paris, has been the world's largest public auction center since 1852. 15 salerooms are available to more than 70 auction houses. The emulation generated by an annual offer of 230,000 artworks from 21 major specialities - from Antiquity to street art - attracts some 3,000 visitors every day. The Group's digital platform, Drouot.com, offers digital sales - Live auctions (live broadcasting and participation in auctions), Online-only auctions (dematerialised auctions) and Buy Now sales (sales of lots at fixed prices). Nearly 2 million items are offered annually by 600 auction houses. Auction news is reported every week in La Gazette Drouot, the leading weekly magazine for the art market and culture published by Auctionspress.