纳米比亚蓝铜矿 Namibia Azurite

米比亚的蓝铜矿巨晶是蓝铜矿中的著名品种,它拥有与众不同却非常吸引人的形态,是非常经典和极受欢迎的矿物品种之一。这种蓝铜矿也是我一直想收集的品种,这个愿望今天终于实现了!

    这就是我最近收集的一个纳米比亚蓝铜矿巨晶标本:

矿标号:azurite19
产地:纳米比亚(Tsumeb mine, Tsumeb, Otjikoto Region, Namibia
尺寸:6.9 x 6.7 x 3.0 cm,最大晶体 5.2 cm
历史记录:前 Rich Kosnar 收藏

    边角锐利、厚实、“剑”形的深蓝色蓝铜矿晶体,表面虽有些粗糙,但富有光泽。晶体平行连生,并伴生有绿色的乳砷铅铜矿(Bayldonite)。

    Azurite from Tsumeb is one of the most classic and highly sought after species on the planet. These specimens are no longer being mined, and they have some of the most distinctive and attractive forms of any mineral. My piece features a few sharp, rather lustrous, “sword”-shaped, fairly thick, deep royal blue color crystals of Azurite which are aesthetically intergrown and associated with green Bayldonite. Despite a little bit of roughness, the piece is in really good condition overall and several of the Azurite crystals (the largest of which measures 5.2 cm) are undamaged. A very attractive small cabiennt specimen, and great quality for this historic locality.

Tsumeb 楚梅布介绍

    楚梅布(Tsumeb)位于纳米比亚的东北角(以前的西南非洲),这里拥有世界上最高产的矿山。这里原来只有布须曼人知道,直到 19 世纪中期德国人在附近建立了村庄,并以此命名。该地区成为世界上最大的矿物产地之一。

    最初人们只是在表层开采铜矿和铅矿,后来在地表下发现了一个包含三条氧化带的矿体,绵延超过一英里。最终超过 240 种不同的矿物被发现,还有大约 40 种等待识别和分类,其中超过 40 种是楚梅布特有的。矿物形成所必须的化学元素在这里是如此丰富和多样,即使是结构简单的矿物也有惊人的非常规组合。有 65 种不同的交代矿物,其中很多都是世界级审美的标本。

    虽然很多矿山或地区都会产出某些矿物品种迄今发现的最好标本,但通常只有一两种,而楚梅布发现的差不多 280 种矿物里有超过 100 种被认为是“品种里最好的标本”。很多标本拥有出众及地区特有的色彩、形态、结晶习性的变化。楚梅布的标本设立了别人对矿物的评价标准。

    后来矿山关闭,1996 年被洪水淹没,收藏家们只能拿到非常有限的美丽标本。目前纳米比亚所有可见的矿物来源都没有了,只有一些收藏偶尔会流通出来。

    In the northeast corner of Namibia,formerly South West Africa, there existed an ore deposit that would become on of the world’s most productive mines. Known only to the Bushmen until the mid 1800’s it was named the Tsumeb Mine after the village nearby, which was founded by the Germans. The region become one of the world’s greatest mineral localities.

    Initially surface mined for copper and lead, an ore body was discovered that consisted of three oxidation zones extending more than a mile below the surface. Eventually more than 240 different minerals were discovered and approximately 40 others are still awaiting identification and classification. More than 40 are uniqaue to Tsumeb. The presence of chemical elements necessary for the formation of minerals was so plentiful and varied that there are remarkable deviations in the composition of even simply structured minerals. There are 65 varieties of psuedomorphs many of which are aesthetic world-class specimens.

    While many mines or localities have produced mineral specimens considered to be the”best of the species” ever found, most are known for one or two with this distinction. In contrast, Tsumeb, with almost 280 different species, has more than 100 minerals considered “best of the species”. Many of these exhibit outstanding variations of color, form and crystal habit unique to the locality. Tsumeb species set the standard by which others are judged.

    The mine was closed and flooded in 1996 and collectors were left with limited supply of beautiful specimens. Visually all of the sources in Namibia are now gone and only specimens from existing collections are occasionally available.

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