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Typical broken fulgurite sections. Fulgurites (from Latin fulgur 'lightning' and -ite), commonly called "fossilized lightning", are natural tubes, clumps, or masses of sintered, vitrified, or fused soil, sand, rock, organic debris and other sediments that sometimes form when lightning discharges into ground.
In 2001, the artists Mendi and Keith Obadike listed Keith's "blackness" for sale on eBay under the "Black Americana" category as part of an art project, "Blackness for Sale." [42] [43] [44] The act was seen as a comment on the commodification of racial identity [45] and as a reference to slave auctions. [46] The auction was eventually shut down ...
Normally, an auction catalog, that lists the art works to be sold, is written and made available well before the auction date. Some of the best known auction houses are Christie's and Sotheby's. The oldest auction house is Stockholm Auction House (Stockholms Auktionsverk). It was established in Sweden in 1674.
A lightning strike can also create a large Lichtenberg figure in grass surrounding the point struck. These are sometimes found on golf courses or in grassy meadows. [12] Branching root-shaped "fulgurite" mineral deposits may also be created as sand and soil is fused into glassy tubes by the intense heat of the current.
Sculpture Image Artist Year Date of sale Seller Buyer Auction house Refs $181.6 $141.3 L'Homme au doigt: Alberto Giacometti: 1947 11 May 2015: Sheldon Solow: Private collection: Christie's, New York [12] $145.7 $104.3 L'Homme qui marche I: Alberto Giacometti: 1961 3 February 2010: Commerzbank: Lily Safra: Sotheby's, London [2] $130 $101.0 ...
Vitrified sand is a type of natural glass, contrasted with manufactured glass in which soda ash or potash are added to lower the melting point. Pure quartz melts at 1,650 °C (3,002 °F). There are several natural processes that produce more or less melted sand and one man-made form: Fulgurite is sand fused by a lightning bolt hitting sand.
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In 2004, a Clemens' sand art glass bottle sold for $12,075 at auction. [citation needed] At another auction, a pair of his bottles were estimated to sell for $25,000-$35,000 but failed to sell. [9] [11] At auction in 2012, a Clemens sand bottle from the Paul Brenner Iowa Collection sold for $45,000 plus buyer's premium in Des Moines, Iowa.