Georgia Foteinou

装饰性矿物拍卖(私人收藏)

14.60克拉 闪电岭预磨面蛋白石原石。 

这是来自矿工的蛋白石原石，已打磨出一个面以显露色带。产自闪电岭。
打磨这块原石应该会很有趣，但请记住，所有蛋白石原石都带有赌性。
我们将原石湿润后拍摄，以展示成品的效果。

**澳大利亚闪电岭脉状蛋白石**

闪电岭脉状蛋白石是一种迷人的澳大利亚蛋白石，产自新南威尔士州著名的**闪电岭**蛋白石矿区。它天然形成于周围母岩中的脉、矿脉和薄层之中，因此每一块都独具特色，开采和切磨往往也颇具挑战。

这些蛋白石历经**数百万年**形成：富含二氧化硅的地下水逐渐流经古老沉积层，将含水二氧化硅沉积在岩石的裂缝、空腔和空隙中。经过漫长的地质年代，这些物质最终形成珍贵的蛋白石，并呈现其标志性的天然**变彩**。

优质的脉状蛋白石可呈现令人惊艳的**红色、橙色、黄色、绿色、蓝色和紫罗兰色**闪光，有时还带有深色或灰色的底色。优质样品具有强烈

14.60 cts Opal Rough Pre Faced Lightning Ridge Gem. 

This is rough opal from the miner that has been faced to expose the colour bar. Mined in lightning ridge.
It should be a fun piece to rub but remember all opal rough is a gamble.
We have taken the rough wet to show how it will  look when finished.

**Australian Lightning Ridge Seam Opal**

Lightning Ridge Seam Opal is a fascinating form of Australian opal found in the famous opal fields of **Lightning Ridge, New South Wales**. It occurs naturally in seams, veins and thin layers within the surrounding host rock, making each piece distinctive and often challenging to extract and cut.

These opals formed over **millions of years**, as silica-rich groundwater gradually moved through ancient sediments and deposited hydrated silica into cracks, cavities and spaces within the rock. Over immense geological periods, this material developed into precious opal with its characteristic natural **play-of-colour**.

Quality seam opal can display spectacular flashes of **red, orange, yellow, green, blue and violet**, sometimes across a dark or grey body tone. Fine examples with strong


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Lightning Ridge Opal，预擦顶级青蓝色、紫色、蓝色欧泊雕刻- 3 g - (1)

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Lightning Ridge Opal，预擦顶级 青蓝色、紫色、蓝色欧泊 雕刻- 3 g - (1)