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全部拍賣 / Ethnographic / Nice unclassified ordinary chondrite with regmalyt...
An unclassified ordinary chondrite with regmaglypts refers to a type of meteorite that belongs to the ordinary chondrite group and displays regmaglypts on its surface. Let's break down these terms: Unclassified Ordinary Chondrite: Meteorites are often classified based on their mineralogical and chemical composition. Ordinary chondrites are the most common type of meteorites found on Earth, representing about 85% of all meteorites. They are primarily composed of silicate minerals, metal, and nickel-iron. Regmaglypts: Regmaglypts are small, thumbprint-like depressions or cavities found on the surface of some meteorites. These features are formed as a result of ablation during the meteorite's entry into the Earth's atmosphere. As the meteoroid travels through the atmosphere, it experiences intense heat due to friction, causing the outer layer to melt and evaporate. This process forms these distinctive thumbprint-like impressions on the meteorite's surface. When a meteorite is described as "unclassified," it means that it has not been specifically categorized or studied in detail to determine its specific subgroup within the ordinary chondrite classification. Researchers may later analyze the meteorite to determine its precise composition, classification, and origin. The term "unclassified" is often temporary and may change as more research is conducted on the meteorite. As members of the IMCA (International Association of Meteorite Collectors), we guarantee the authenticity of all our pieces.
估價:$623.73
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East Greenlandic mask of driftwood with strap of seal skin. Tasiilaq.
09/28/2026
$546.51
估價： $547.88
Carved wooden horse. Mounted on iron stand. Southeast Asia. 20th century.
09/28/2026
$159.4
估價： $308.99
