詳情
This pyramidal shaped Moon rock benefitted from its residency in the Sahara Desert where it was sandblasted over a period of many decades. The highly textured surface exhibits numerous fine crenellations and tiny sockets and hollows. Accented in earthtones, the graphite-hued surface of this specimen also possesses a waxy desert varnish from its exposure to the Saharan elements. Provisional name NWA 15343.
114 x 118 x 1in. (3.2 x 2.9 x 2.5cm.)
31g.
特別通告
This lot will be removed to Christie’s Park Royal. Christie’s will inform you if the lot has been sent offsite. Our removal and storage of the lot is subject to the terms and conditions of storage which can be found at Christies.com/storage and our fees for storage are set out in the table below - these will apply whether the lot remains with Christie’s or is removed elsewhere. Please call Christie’s Client Service 24 hours in advance to book a collection time at Christie’s Park Royal. All collections from Christie’s Park Royal will be by pre-booked appointment only. Tel: +44 (0)20 7839 9060 Email: cscollectionsuk@christies.com. If the lot remains at Christie’s it will be available for collection on any working day 9.00 am to 5.00 pm. Lots are not available for collection at weekends.
-
榮譽呈獻

拍品專文

The Moon is among the rarest substances on Earth, and now offered is a complete lunar meteorite. NWA 15434 is a relatively fine-grained fragmental breccia composed of anorthite, pigeonite, olivine, augite, Ti-chromite and troilite set in a finer-grained matrix. It was part of a larger mass that was blasted off the lunar surface following an asteroid impact. There are less than 750 kg of lunar meteorites known to exist and a significant fraction is controlled by governmental institutions. Moon rocks are identified by specific textural, mineralogical, chemical and isotopic signatures. Many of the common minerals found on Earth’s surface are rare or absent on the Moon and some lunar minerals are unknown on Earth. In addition, Moon rocks contain gases captured from the solar wind with isotope ratios very different from the same gases found on Earth. NWA 15343 is the 15,343rd rock recovered in the Northwest African grid of the Sahara Desert to be analyzed and classified. If this meteorite were cut, we would see the classic, signature look of a lunar breccia featuring grains of anorthite (a white calcium-aluminum silicate mineral present in most Moon rocks) set against a dark matrix. Many lunar samples conveyed to Earth by the Apollo missions are very similar to suspected lunar meteorites— and such is the case with the Moon rock now offered.

相關文章

Sorry, we are unable to display this content. Please check your connection.

更多來自
科學及自然歷史
參與競投 狀況報告 

佳士得專家或會聯絡閣下,以商討此拍品,又或於拍品狀況於拍賣前有所改變時知會閣下。

本人確認已閱讀有關狀況報告的重要通知 並同意其條款。 查閱狀況報告