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In Australia, the largest production of opal is Cooper Pedy, where Opal production accounts for almost 80% of the world's production, and another major production area of Opal is Andamuka, although the production here is not as large as Cooper Pedy, but it is also a major production area of Opal. However, most of the opals produced in these two places belong to the kind of white opals that are not very valuable, and the most precious black opals are produced in the Leyton Nenrich Ridge region of New South Wales, which is the main production area of the extremely valuable black opals.

However, whether it is Cooper Pedy or Andamuka, they will occasionally find precious black opals, Leiden Nyingrich and Cooper Pedy are too far away, and Andamuka is by his side, Tang Feng has no reason not to go over to take a look.

The Hill-Andamuka Highway is the main external road to Andamuka, which connects to Andamuka to the east and the B97 to the west. A short drive east along the road is before you can see scattered pits in the middle of the wasteland.

Most of these pits have been abandoned and are left over from the mining of opals. Opal from Australia is also known as the "gem of sedimentation" because it forms and is mainly produced in sedimentary rocks in the Great Artesian Well Basin of the Mesozoic Era. And whether it's Cooper Pedy, Andamuka, or Layton Nyingrich, they are all in the Great Artesian Basin. It's no surprise that there are so many pits around Andamuka.

At first, these abandoned pits were relatively scarce, but as they got closer to Andamuka, they became more and more pitted, and when they came within two kilometers of Andamuka, they were almost as close to the surface of the moon.

At first glance, there are pitted pits of various sizes everywhere, and people can be seen working in them from time to time. The beautiful opal is excavated piece by piece from these pits and then processed into a variety of fascinating finished gemstones.

The price of the baby stone varies, the most common is the light-colored opal, which is commonly known as the "white opal", and the valuable ones are "black opal" and "fire opal".

The so-called white opal, also commonly known as "milk opal", is given this name because of its light embryonic body hue. The main production of White Opal is in Coober Pedy and Andamuka in South Australia. White opal is relatively common due to its lighter embryonic body tone and large yields. White opals do not exhibit contrasting bright colors like black opals, so they are relatively inexpensive.

And the black opal, because it shows a bright color on the dark embryonic body tone, is extremely beautiful, so it is commonly known as "black opal...... Black Opal doesn't mean it's completely black, it's just that it has a darker body tone compared to white Opal, which has a lighter body tone. Natural black opals are the royal family of opals, and due to their form and rarity, the price is usually stable and expensive, and black opals are also the highest quality opals in the world. At present, the main source of black opal in the world is Layton Nyingrich in New South Wales, where the black opal is the most famous and expensive opal variety.

As for the other kind of "fire opal", it refers to those translucent to opaque varieties with no or little color variation, which are generally orange, orange-red, and red, of which the bright red is the most expensive in the fire opal.

In Andamuka, a 1.7-kilogram black opal rough was found, although it is not as good as the world's largest 2.26-kilogram black opal rough found in Leiden Nyingrich, but this rough stone can definitely be called a national treasure.

The 2.26 kilogram of black opal rough found in Leiden Ninrich was once wanted to be purchased by the Saudi royal family for $4 million, which is not as impressive as the tens of millions of dollars for those large diamonds. After all, the sheer volume of Opal's production is not comparable to that of diamonds.

It is precisely because of the high value of these charming little creatures that they attract miners from all over the world to come here, buy land, apply for various qualifications for mining, and then start digging, and many miners come together, and the surrounding area of Andamuka is transformed into a landscape that rivals the surface of the moon.

For the Opal Mine, to be honest, Tang Feng really has some ideas, so this time he came to Andamuka, Tang Feng came with the attitude of trying it out. After all, with the star core in hand, let alone Opal ore, it is no problem to directly get the Opal Rough Stone.

It's just that when Tang Feng saw the environment around Andamuka, his original heart was immediately doused by a basin of water on his head and he was reluctant to move.

The environment here is really harsh, and with so many people working in the mines, the land price here will definitely be sky-high. Since he had the star core, Tang Feng has always adhered to the principle of spending a small amount of money to do big things to see those untapped mineral deposits, if the land price here is very cheap, Tang Feng definitely doesn't mind building a mine from here. After all, the price of baby stone is more expensive than gold!

The general sales price of a black opal of about five carats is about 5,000 to 7,000 yuan, and five carats is one gram, how much is a gram of gold? A comparison, you know that there is definitely a profit in opening this kind of opal mine, and the profit is not small!

However, the current situation made Tang Feng really lose the idea of getting an opal mine, but there is also an activity specially offered for tourists in Andamuka Town, which is to find opal rough in some abandoned mines.

This kind of activity is like Diamond Crater Park in the United States, as long as you pay a certain fee, then you can hold a shovel, ? Tools such as heads dig by themselves, of course, it is forbidden to dig mechanically. Because Andamuka is also one of the main sources of opal rough, there are still many tourists who visit here every year.

So Andamuka's government has developed such an activity, as long as you dig out the opal rough stone with bare hands in the designated mine, then it belongs to you, this gimmick really attracted the interest of a lot of tourists, every year to participate in the bare hand excavation of opal rough tourists are not a few, anyway, are play, it doesn't cost much, it's quite interesting, in case you dig a piece of opal rough, it must be a big profit.

Of course, the mines chosen by the government are abandoned mines, so although there are many tourists who dig with their bare hands, there are not many tourists who can actually dig up high-value opal rough. However, there are exceptions, in 2009, a tourist from New Zealand once dug up a 0.4-kilogram fire opal rough during a freehand digging activity in Andamuka, which became a local legend.

Since you don't plan to get a mine here, it's also good to participate in this activity, and it is not a problem to get a few large Opal rough stones with a star core by your side!

A smiling Tang Feng drove to the abandoned mine pit used to dig opal rough with his bare hands, which has been transformed into a park to attract tourists to come and dig rough with their bare hands.

Tang Feng spent ten Australian dollars to buy a ticket, took the shovel and pickaxe provided by the park, and walked into the huge pit with a smile, while Depp and Donnie, the two little guys, wagged their tails and followed Tang Feng's ass. Little did the park's managers know at this time that a new legend and record would be broken today.