MOLDAVITE — WHEN EARTH AND ASTEROID COLLIDE AND CREATE GLASS - photo 1

MOLDAVITE — WHEN EARTH AND ASTEROID COLLIDE AND CREATE GLASS

Sold
$ 4 750
Auction dateClassic
25.08.2020 10:00UTC +01:00
Auctioneer
CHRISTIE'S
Event location
United Kingdom, London
Archive
The auction is completed. No bids can be placed anymore.
Archive
ID 389983
Lot 39 | MOLDAVITE — WHEN EARTH AND ASTEROID COLLIDE AND CREATE GLASS
Lot Descriotion:
A tektite’s shape is largely the result of aerodynamics. Apart from the material itself, the shape is a product of several variables including the altitude that an asteroid impact splashes molten material into the sky, the subsequent ablation during its return to Earth, its degree of orientation and speed of rotation. Surface detail is largely the result of the acidity of the soil in which the glass remained entombed for millions of years. Now offered is a highly crenelated, deep green, teardrop-shaped moldavite.
73 x 13 x 15mm (2.75 x 0.5 x 0.5 in.)
16.75g

Tektites are silicate-glass formations whose origin was long considered a mystery. While lot 31 describes the crushing, destructive force of an asteroid impact, now offered is a dramatically different impact-produced material (similar to lot 37). Scientists agree these specimens, whose name comes from the Greek tektos (“melted”), form after an asteroid slams into Earth. The extraordinary heat and pressure resulting from such an apocalyptic event not only shatters the target rock, but actually liquifies it and spashes the molten rock into the atmosphere from where it returns to Earth as solidified glass. The type of glass, color, and opacity depend on the type of material liquefied.
Tektites are terrestrial in origin and are named after the locality in which they are found. Hence, there are philippinites, australites and from the Moldau River Valley in the Czech Republic — moldivites. Indisputably the most beautiful tektites of all, moldavite formed nearly 15 million years ago by the asteroid impact that created the 14.5 mile diameter Nördlinger-Ries crater near Stuttgart, Germany. Revered as a talisman by Paleolithic humans and delivered by men to their fiancées in the 17th-19th centuries to assure harmony in marital relations, moldavite is often cut into gemstones. Prized for its clarity, shape and color, moldavite’s character is substantially determined by the chemistry of the soil in which it landed: a hill across a road can provide a markedly different-looking sample than one found in an adjacent valley. Crenellations abound in this superior example found outside the town of Dobrkovska Lhotka (Paryz) in the Czech Republic —nearly 450 km (280 miles) away from the impact site. The hues, which range from emerald to tourmaline, result from variations of density in this sublime natural impact glass.

Christie's would like to thank Dr. Alan E. Rubin at the Institute of Geophysics and Planetary Physics, University of California, Los Angeles for his assistance in preparing this catalogue.

Address of auction CHRISTIE'S
8 King Street, St. James's
SW1Y 6QT London
United Kingdom
Preview
12.08.2020 – 25.08.2020
Phone +44 (0)20 7839 9060
Email
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