未归类的铁陨石 NWA 7335 普雷斯蒂克八面体铁陨石 - 23.1 g
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未分組鐵隕石，NWA 7335 斜晶六方晶八面體鐵隕石，重量23.1 g，產地西北非洲。
AI輔助摘要
賣家描述
Etched partial end-cut of NWA 7335
Iron ungrouped, plessitic octahedrite.
Amazing micro pattern in a meteorite that shows characteristics of both medium and plessitic octahedrites.
Cut and polished sections display 3 prominent lamellae directions. Two are at 60° intersection angles with a unique 70° intersection angle. The lamellae producing the Widmanstätten pattern have an average bandwidth of 0.6±0.2 mm, indicative of a medium octahedrite. Upon closer examination however, these lamellae are composed of multiple tiny spindles ( mm width) that are roughly parallel to each other. The spindles can also be seen in the plessite matrix displaying an octahedrite arrangement on a much finer scale, similar to that of a plessitic octahedrite. Although Ni content is similar to IB, IIC, and IIIAB groups, Ga and Ir concentrations are outside limits for these groups
Date: P March 2009
Mass (g): 4908
Pieces: 1
23.11 g - 35 x 17 x 8 mm
Scale-cube is 1 x 1 x 1 cm
International meteorite collector association #3503
!! This auction ends on Thursday, December 18th. All payments received through the Catawiki system by 8:00 AM on Friday, December 19th, will be picked up from our company by DHL on Friday at noon. According to DHL, this means delivery before Christmas to Belgium, France, Luxembourg, the Netherlands, Austria, and Switzerland. For delivery before Christmas in Germany, payment via the Catawiki system is required by 8:00 AM on Monday, December 22nd.
Etched partial end-cut of NWA 7335
Iron ungrouped, plessitic octahedrite.
Amazing micro pattern in a meteorite that shows characteristics of both medium and plessitic octahedrites.
Cut and polished sections display 3 prominent lamellae directions. Two are at 60° intersection angles with a unique 70° intersection angle. The lamellae producing the Widmanstätten pattern have an average bandwidth of 0.6±0.2 mm, indicative of a medium octahedrite. Upon closer examination however, these lamellae are composed of multiple tiny spindles ( mm width) that are roughly parallel to each other. The spindles can also be seen in the plessite matrix displaying an octahedrite arrangement on a much finer scale, similar to that of a plessitic octahedrite. Although Ni content is similar to IB, IIC, and IIIAB groups, Ga and Ir concentrations are outside limits for these groups
Date: P March 2009
Mass (g): 4908
Pieces: 1
23.11 g - 35 x 17 x 8 mm
Scale-cube is 1 x 1 x 1 cm
International meteorite collector association #3503
!! This auction ends on Thursday, December 18th. All payments received through the Catawiki system by 8:00 AM on Friday, December 19th, will be picked up from our company by DHL on Friday at noon. According to DHL, this means delivery before Christmas to Belgium, France, Luxembourg, the Netherlands, Austria, and Switzerland. For delivery before Christmas in Germany, payment via the Catawiki system is required by 8:00 AM on Monday, December 22nd.
詳細資料
隕石名稱
Ungrouped Iron Meteorite
隕石種類
NWA 7335 plessitic Octahedrite
重量
23,1 g
原產國
North-West-Africa
