NWA 14456 H6 球粒陨石 球粒状陨石 - 98.4 g - (1)

这块来自 NWA 14456 的末端切割样本被分类为普通陨石，H6，于 2021 年在西北非洲发现。重量 98.4 克，样品相当大，表面积相对较大，部分原因在于其略微扁平的形状，这一复杂的标本也代表了这块陨石相当的一部分，总已知重量仅为 1,935 克。表面有大量碎片，覆盖其光滑的一面，有点像月球材料，这块外部粗糙的惊人之作是高再结晶陨石的一个非常“新鲜”的实例，含有罕见残余陨石晶核。展示表面的复杂性与对比度确实令人惊叹，太空岩石外部的崎岖自然具备艺术美感。面部的金属斑点更增添了一层趣味。

OFFICIAL CLASSIFICATION DATA SOURCE
THE METEORITICAL SOCIETY.

Northwest Africa 14456 (NWA 14456)
Petrography: (A. Irving, UWS and J. Boesenberg, BrownU) Very fresh, highly recrystallized specimen containing rare remnant chondrules. Accessory phases are sodic plagioclase, kamacite, troilite, chromite, merrillite and chlorapatite.

Geochemistry: Olivine (Fa19.6±0.2, range Fa19.4-19.9, N = 7), low-Ca pyroxene (Fs17.2±0.2Wo1.4±0.1, range Fs16.9-17.4Wo1.2-1.6, N = 7).

Classification: Ordinary chondrite (H6).

Specimens: 93.7 g including one polished thin section at UWB; remainder with Mr. M. Arjdal.

Data from:
MB110
Table 0
Line 0:
Place of purchase: morocco
Date: P 2021 Apr
Mass (g): 1935
Pieces: 3
Class: H6
Shock stage: S2
Weathering grade: W0/1
Fayalite (mol%): 19.6±0.2
Ferrosilite (mol%): 17.2±0.2
Wollastonite (mol%): 1.4±0.1