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Australian Black Opal Information
澳大利亚黑欧泊信息
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black opal informationHighly prized and sought after by kings, emperors, maharajas and sultans, the majestic opal has been desired throughout the ages. Its intrinsic beauty and ever-changing colours and patterns keep those who poses it spell bound. Many historic opals were crystal which tended to produce milky white colours not the bright flashes as the Black Opal above. The discovery of black opal in Australia in the late 1800’s with its bright colours changed the gemstone world. This new black opal became to be known as the ‘Queen of Gems’.

Lightning Ridge is the home of the beautiful black opal. It is nestled away among high ridges covered with scrub and pebbles. It is here that eons ago, nature hid the earth’s rarest gem, black opal. The beauty of the green trees, blue sky and red pebbles is reminiscent of the ever-changing colours of the magnificent opal found deep below. Unlike other gemstones no one opal is the same.

Australian Black Opal InformationSPEC the black opal dog miner Lightning Ridge 1990

Lightning Ridge, however, was not the first place to report black opal. It had been found in Egypt in 1899, two years before Jack Murray sank the first hole at the Nobby in 1901, at Jundah, Queensland and later at White Cliffs. But Lightning Ridge opal was different, and it is this difference that has made it famous. Until that time, the world had never seen such incredible patterns in opal on such a beautiful black back. The supply of black opal from Lightning Ridge dramatically changed the way gem merchants evaluated opals, setting an unprecedented hallmark for the gem. Black opal is the rarest and most valuable of all opals and is generally found as a bar of various colours in a dark body. In addition, there is also semi black and black crystal. Lightning Ridge in New South Wales is the worldwide home for black opal and is widely regarded as producing the best black opal in the world.

Australian Black Opal Mining

Black opal is getting harder and harder to find. Not only have fuel prices and lease fees made it very costly to mine for opal, but the scarcity of Black Opal is now a reality. This trend has been emerging for years, and it is now rare to find quality red fire black opal. The majority of opal being mined at Lightning Ridge is now seam opal, which is formed in bands similar to opals from Coober Pedy. Black opals that have formed as nuggets are now rare to find. Even the color base of black opals is different to years ago; the natural base is now more of a grey black color rather than dark black as it used to be. Miners are finding much more semi-black opal. Black opal color guides can be used to grade the darkness of a Black Opal. N5 is the darkest, and Hi the lightest.

Black Opal Investment

Black opal have always been the informed buyers top choice when selecting gemstones for investment. They have a strong red fire and a dark black base are considered extremely rare and as an investment will generally appreciate by at least 20% per year.

Many black opals sold on Opal Auctions have increased in value between 20 and 30% per year and some black opals valued at $1000 per carat have now increased to $3000 per carat. Investors in black opal should always look for top opals that have a black base.

Other factors include-

  • Cabochon shape (domed tops are ideal for Jewelry)
  • Uniqueness of the pattern and color. Red is most valuable but some orange and green fire ribbon patterns can also make for excellent investments.

Black opals have always been the favourite type of opal for serious collectors, but boulder opal has increased in popularity as well. The Japanese market tend to prefer black opal cabochons and have helped moderate an ongoing value increase for this opal type. One of our most expensive Australian Black Opal ever sold on Opal Auctions is a 37.30 carat Black Opal sold by Rollingstone Opals for $37,500. It is a gem fire Black Opal with body tone N1 and brightness rated at 5 out of 5.

Australian Black Opal Availability

There are a few spectacular opal collections in Australia but none that include a large Black Opal collection because they are so rare. This trend is repeated overseas, where large Opal collections can be found in several countries including the US, Hong Kong and Germany but a large collection of black opal is very rare indeed.

Black Opal Market Trends

With the ever increasing cost of opal mining mainly driven by oil prices and dwindling availability, the opal mining industry is coming under more and more pressure.

In Lightning Ridge all the “easy” mines have already been exhausted, and miners are facing very tough and dangerous mining conditions to extract opal in the more dangerous mines. Low grade black opal is steady and available so the common laws of supply and demand are in force.

Opalholics - now is the time to buy investment opal because the supply of high grade black opal is thinning, and the mining community of Lightning Ridge as a whole is not finding much opal, which can only mean one thing for prices.

How Black Opal is Graded and Sold

black opals

How would you set this black opal? As ring or pendant? If pendant which way would you face this opal ABCD? Opals have lot more decisions required than any other gemstone as each one is so unique and special.

Black Rough Opal parcels are sorted into three grades: tops, middle, and low. Each tops parcel has a King stone,which is the best stone in the parcel. Some parcels have several King stones. Color is the primary criteria for grading, but the graders also take into consideration the number of imperfections and faults, and whether a stone is the right shape to be cut into an oval or one of the other popular shapes. You can buy rough opal in several different conditions.

Mine Run. Direct from the opal mine. The stones have not been cut or ground down. This means that there is more guesswork in the cutting.

Purchasing mine run opal can be risky if you are not very experienced.

Off - Cuts. The miner has removed whatever opal he has a market for and sells you what’s left. With off cuts, you can usually tell what you are going to be able to cut. You must still watch for cracks in the opal because once a crack becomes obvious, a stone can lose half its value.

Rubs. This can often be the best way of buying rough if you are not very experienced. The miner has cut and ground the stones into basic shapes, after having removed most of the rubbish. What you have left is the stone nearly ready for the dopping and polishing process. You have the satisfaction of cutting your own stones without the high risk of buying mine run rough. Opal is officially sold in troy oz. There are approximately 30 grams to a troy oz and approximately 30-oz to a kilo.

Black opal mined from Lightning Ridge has always had good reputation for blue opals on black. These opals in the 1980s were common in the Cochran opal fields at Lightning Ridge and these were Nobby opals not seam opal, that is the opal was formed naturally in rock with black potch on top and bottom.

The seam opal has lighter black back and sometimes with grey or sandy potch on top. Black opal nobbies are best investment opal as from 1990s production of black nobbies has dramatically decreased and only seam opal is found today. We see less and less black opals with blue fire colours

Some blue opal from Lightning Ridge has magic electric blue fire and flash and also some best natural patterns of opals are in blue colour, from broad flash to block pattern and they are very attractive in white gold ring.

These days white gold jewellery is very popular and some crystal opals do not suit white gold jewellery but black opals blue colour are stunning, even set with diamonds they look so attractive to the eye, especially blue hues in a black opal. Black opal has promoted red fire opal as the best opal for investment.

Rating colour of black opals are as follows in regards to price per carat

  • Red
  • Orange
  • Green
  • Blue

However Blue opal has been under valued as investment opal, black opal with red fire has increased in value 50% per year over last 10 years. Black opal with cabochon and good flash has doubled that figure to make it the best investment colour if you had purchased blue fire opal 10 years ago

Also when purchasing opal over the internet always ask seller if opal is as bright as picture, so good idea to ask for picture of hand holding the opal as the picture cant be enhanced as the colour of skin looks different ,either greyish or pinkish looking means the picture has been enhanced

Opal is also rated in accordance to brightness. Body tone which is how the opal is visual is also measured from N 1as blackest to N9 as lightest opal. Also check with seller that the bottom of opal is clean, that’s is all natural potch ,black preferred to grey or if potch/sand is evident on bottom.

Lastly the more cabochon the opal also the more valuable, so flat opals are generally less expensive than well domed opals. Opals that are cabochon Jed reflect light better and rolling flash pattern is very popular as shows colour from all angles

Enjoy your own Black Opal!

黑欧泊信息受到国王,皇帝,大君和苏丹的高度珍视和追捧,这些雄伟的蛋白石在各个时代都是受欢迎的。它的内在美和不断变化的颜色和图案使那些构成它的人保持拼写。许多历史悠久的蛋白石都是水晶,往往产生乳白色,而不是像上面的黑欧泊那样明亮的闪光。 1800年代后期在澳大利亚发现的黑色蛋白石以其鲜艳的色彩改变了宝石世界。这种新的黑蛋白石被称为“宝石女王”。

闪电岭是美丽的黑色蛋白石的家。它坐落在高高的山脊中,覆盖着磨砂和鹅卵石。正是在这里,大自然隐藏了地球上最稀有的宝石,黑色蛋白石。绿树,蓝天和红色鹅卵石的美丽让人联想到深深下方的壮观蛋白石的不断变化的颜色。与其他宝石不同,没有一个蛋白石是相同的。

澳大利亚黑欧泊信息 SPEC黑色蛋白石矿工Lightning Ridge 1990

然而,Lightning Ridge并不是第一个报告黑蛋白石的地方。它于1899年在埃及被发现,两年前杰克·默里在1901年在昆士兰州的Jundah以及后来的White Cliffs沉没了第一个洞。但闪电岭蛋白石是不同的,正是这种差异使它成名。直到那个时候,世界上从未见过如此美丽的黑背上的蛋白石这种令人难以置信的图案。来自Lightning Ridge的黑蛋白石的供应极大地改变了宝石商人评估蛋白石的方式,为宝石创造了前所未有的标志。黑蛋白石是所有蛋白石中最稀有和最有价值的,通常在黑暗的身体中被发现为各种颜色的酒吧。此外,还有半黑色和黑色水晶。新南威尔士州的Lightning Ridge是世界上黑蛋白石的家园,被广泛认为是世界上最好的黑蛋白石。

澳大利亚黑欧泊采矿

黑蛋白石变得越来越难找。不仅燃料价格和租赁费用使得开采蛋白石的成本非常高,而且黑欧泊的稀缺现在已经成为现实。这种趋势已经出现多年,现在很难找到优质的红火黑蛋白石。在Lightning Ridge开采的大多数蛋白石现在都是煤层蛋白石,它与Coober Pedy的蛋白石相似。现在很难找到形成金块的黑蛋白石。甚至黑蛋白石的颜色基础也与几年前不同;现在的天然基础更像是灰黑色而不是过去的深黑色。矿工们发现了更多的半黑蛋白石。黑色蛋白石颜色指南可用于评定黑欧泊的黑暗。 N5是最黑暗的,你是最轻的。

黑欧泊投资

在选择宝石进行投资时,黑欧泊一直是知情买家的首选。他们有强烈的红火和深黑色基地被认为是非常罕见的,并且投资通常每年至少增加20%。

在蛋白石拍卖会上出售的许多黑蛋白石的价值每年增加20%至30%,而一些价值每克拉1000美元的黑蛋白石现在已经增加到每克拉3000美元。黑蛋白石的投资者应该总是寻找具有黑色基础的顶级蛋白石。

其他因素包括─

  • 凸圆形(圆顶顶部是珠宝的理想选择)
  • 图案和颜色的独特性。红色是最有价值的,但一些橙色和绿色的火带图案也可以提供出色的投资。

对于严肃的收藏家来说,黑蛋白石一直是最受欢迎的蛋白石类型,但是巨石蛋白石也越来越受欢迎。日本市场倾向于偏爱黑色蛋白石凸圆形,并且有助于缓和这种蛋白石类型的持续增值。我们在Opal Auctions上销售的最昂贵的澳大利亚黑蛋白石之一是由Rollingstone Opals以37,500美元的价格出售的37.30克拉黑欧泊。它是一种宝石火黑欧泊,体色N1,亮度为5分(满分5分)。

澳大利亚黑欧泊可用性

在澳大利亚有一些壮观的蛋白石收藏品,但没有一个包括大型的黑欧泊系列,因为它们非常罕见。这种趋势在海外重复出现,在美国,香港和德国等几个国家都可以找到大型蛋白石系列,但大量的黑蛋白石确实非常罕见。

黑蛋白石市场趋势

随着主要由油价和可用性减少推动的蛋白石开采成本不断上升,蛋白石采矿业面临越来越大的压力。

在Lightning Ridge,所有“简单”的矿井已经耗尽,矿工们正面临着非常艰难和危险的采矿条件,以便在更危险的矿井中开采蛋白石。低品位黑蛋白石是稳定可用的,所以供应和需求的普遍规律是有效的。

Opalholics - 现在是购买投资蛋白石的时候了,因为高品位黑蛋白石的供应正在变薄,Lightning Ridge的采矿社区整体上找不到很多蛋白石,这对价格来说只是一件事。

黑蛋白石如何分级和出售

黑蛋白石

你怎么设置这个黑蛋白石?作为戒指还是吊坠?如果吊坠哪个方向你会面对这个蛋白石ABCD?蛋白石比任何其他宝石都需要更多的决定,因为每个宝石都是如此独特和特别。

黑粗糙蛋白石包裹分为三个等级:顶部,中部和低部。每个上衣包裹都有一块King石头,这是包裹中最好的石头。有些包裹有几块King石头。颜色是分级的主要标准,但是分级者还要考虑缺陷和缺陷的数量,以及石头是否是切成椭圆形或其他流行形状的正确形状。您可以在几种不同的条件下购买粗蛋白石。

我的奔跑。直接来自蛋白石矿。石头没有被切割或磨碎。这意味着切割中有更多的猜测。

如果您不是很有经验,购买矿山蛋白石可能会有风险。

关闭 - 削减。这位矿工已经拆除了他所拥有市场的蛋白石,并向你出售剩下的东西。通过剪切,您通常可以告诉您将要切割的内容。你仍然必须注意蛋白石的裂缝,因为一旦裂缝变得明显,石头就会失去一半的价值。

磨。如果您不是很有经验,这通常是购买粗糙的最佳方式。在清除了大部分垃圾后,矿工将石头切割成基本形状。你剩下的就是石头几乎准备好进行掺杂和抛光处理。你可以满足于削减自己的宝石,而不会有购买矿山粗糙的高风险。蛋白石正式以特洛伊盎司出售。大约30克到金衡盎司,大约30盎司到一公斤。

从Lightning Ridge开采的黑欧泊一直在黑色的蓝色蛋白石上享有良好的声誉。 20世纪80年代的这些蛋白石在闪电岭的Cochran蛋白石领域很常见,这些是Nobby蛋白石而不是接缝蛋白石,也就是蛋白石是在岩石中自然形成的,顶部和底部是黑色的。

接缝蛋白石的背部较浅,有时顶部有灰色或沙质的背景。黑色蛋白石的爱好是最好的投资蛋白石,因为从20世纪90年代开始,黑人的兴趣大幅减少,今天只发现了接缝蛋白石。我们看到越来越少的黑色蛋白石搭配蓝色火色

来自Lightning Ridge的一些蓝色蛋白石具有神奇的电动蓝火和闪光灯以及一些最佳的蛋白石天然图案为蓝色,从宽闪光到块状图案,它们在白金戒指中非常有吸引力。

如今,白金首饰非常受欢迎,一些水晶蛋白石不适合白金首饰,但黑色蛋白石蓝色令人惊艳,即使镶嵌钻石,它们看起来也很吸引眼球,特别是黑色蛋白石的蓝色调。黑蛋白石促使红火蛋白石成为投资的最佳蛋白石。

关于每克拉的价格,黑蛋白石的评级颜色如下

  • 红色
  • 橙子
  • 绿色
  • 蓝色

然而,蓝蛋白石作为投资蛋白石一直受到重视,红火的黑蛋白石在过去10年中每年价值增加50%。如果您购买蓝火蛋白石10年前,黑色蛋白石与凸圆形和良好的闪光使这个数字增加了一倍,使其成为最好的投资颜色

此外,当通过互联网购买蛋白石时,总是询问卖家是否蛋白石像图片一样明亮,所以很好的想法要求手拿蛋白石的图片,因为图片不能增强,因为皮肤的颜色看起来不同,灰色或粉红色看起来意味着图片得到了增强

蛋白石也根据亮度进行评级。体色是蛋白石的视觉效果,也是从最黑的N 1到最轻的蛋白石N9测量的。还要与卖家核实蛋白石的底部是干净的,那是全天然的盆栽,黑色是灰色的,或者底部是否有明显的盆栽/沙子。

最后,蛋白石越多越有价值,所以平面蛋白石通常比圆顶蛋白石便宜。作为凸圆形Jed的蛋白石更好地反射光,并且滚动闪光图案非常受欢迎,因为从各个角度显示颜色

享受自己的黑欧泊!

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Debralee6511

Thanku for this information, packed with a wealth of Opal buying tidbits. Opal is my birthstone, I grew up only really seeing the milky white. I have very few pieces though because I was always told Opal isn't a "wear everyday" kinda stone. This year I purchased my first Boulder Opal Ring, and love it. They're so many different types of Opal's that I feel very "Special" being able to call this stunning, mysterious, incredibly beautiful stone my birthstone.. With so many options, how will my neck hold them all? Lol

24th Mar 2017
Opalplus

Hi Opaldragon   I bet you have seen massive increase in prices since you visited Australia.
US navy used dock Fremantle West Australia in 1990 and I would also take opals to sell with Quilpie opals on the dock.
The battleship Missouri visited Fremantle in 1991 and was great to view this famous battleship.
I see you bought opal ring from the John benny collection and can see you like top gem opals.
Hope you enjoy the fire in your opal ring

15th Jan 2017
Opaldragon1964

Been in lovesince age7 my mom had opal ring. I visited Australia several times in US Navy. Im collecting. Old guy at the pub said," dont buy as many black opals as you can afford, buy as many as you can carry! Im looking forward to recieving my latest purchase. So gday from the USA!

8th Jan 2017
Bizzee

I certainly hope one day I will be able to visit an Opal Mine in Australia. I am so fascinated by this natural beauty and am learning so much about the variety, colours and various places all over the world where Opals are mined. I am so glad I came across Opal Auctions and have even started a small but gorgeous collection of my own!

22nd May 2016
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