编号 102206234

已不存在
来自其型本地 Ovifak,Disko Island,格陵兰的天然铁(地球性铁,非陨石) - 高度: 5 cm - 宽度: 3 cm- 280 g - (1)
竞投已结束
2天前

来自其型本地 Ovifak,Disko Island,格陵兰的天然铁(地球性铁,非陨石) - 高度: 5 cm - 宽度: 3 cm- 280 g - (1)

A superb sample of native (telluric) iron from its type locality Ovifak, Disko Island, Greenland. The sample weighs 280 grams and its size is 5x7x3cm (small cabinet). The original sample was cut and polished on one surface and its chemical structure was analyzed with an electron microprobe. Its composition is dominated by pure iron (~97.5%) with a low nickel (2.1-2.5%) and cobalt (0.5-0.6%) content. Except for elemental iron, other minerals include cohenite and troilite. The cut and polished surface is very attractive as shiny crystals of native iron and cohenite can be seen all over the area. The other surfaces of the sample were kept as found in Greenland. This is not a historical sample, but a recent find from year 2024. The occurrence of elemental iron in the Earth's crust is extremely rare as it is associated with specific geological conditions. Only a few localities of native iron occurences are known to date (Ovifak, Disko Island, Greenland; Khungtukun and Ozernaya in Siberia; and Buhl, Germany). Don't miss out, telluric iron from its type locality is rarely available!

编号 102206234

已不存在
来自其型本地 Ovifak,Disko Island,格陵兰的天然铁(地球性铁,非陨石) - 高度: 5 cm - 宽度: 3 cm- 280 g - (1)

来自其型本地 Ovifak,Disko Island,格陵兰的天然铁(地球性铁,非陨石) - 高度: 5 cm - 宽度: 3 cm- 280 g - (1)

A superb sample of native (telluric) iron from its type locality Ovifak, Disko Island, Greenland.

The sample weighs 280 grams and its size is 5x7x3cm (small cabinet). The original sample was cut and polished on one surface and its chemical structure was analyzed with an electron microprobe. Its composition is dominated by pure iron (~97.5%) with a low nickel (2.1-2.5%) and cobalt (0.5-0.6%) content. Except for elemental iron, other minerals include cohenite and troilite. The cut and polished surface is very attractive as shiny crystals of native iron and cohenite can be seen all over the area. The other surfaces of the sample were kept as found in Greenland. This is not a historical sample, but a recent find from year 2024.

The occurrence of elemental iron in the Earth's crust is extremely rare as it is associated with specific geological conditions. Only a few localities of native iron occurences are known to date (Ovifak, Disko Island, Greenland; Khungtukun and Ozernaya in Siberia; and Buhl, Germany).

Don't miss out, telluric iron from its type locality is rarely available!

竞投已结束
Francesco Moser
专家
估价  € 900 - € 1,100

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