This is a rare giant emerald ore in the world, because the calcite veins containing emeralds and pyrite calcite veins are distributed in veins or nets, and the length of the veins can be fifty or sixty meters, but the thickness is generally one millimeter to 20 centimeters, and it is rare to pass 10 centimeters.

It is precisely because of the thin ore layer that there are very few large emerald ore bodies, and most of the crystals on the top are also less than 1 carat, and the volume is smaller after processing into finished products, and the crystals of two or three centimeters in length can be regarded as large blocks.

Weta tugged around the ore for a while, and found a number of small scattered green crystals in a slightly deeper place, which glowed a crystal green under the searchlight of the diving armor.

At this time, Zhang Nan once again reminded the diving captain to go out of the water first, safety first, and at the same time asked the boatswain López Cuenca to prepare for several other sets of diving armor to go into the water: since there is an interesting discovery, let's get that big guy up.

Vita Bruno can't disobey the boss's second order, the previous delay is dutiful, and another attempt will make the big boss unhappy.

Within minutes, Weta's fully humanoid armor diving suit appeared on the surface, and the ordinary divers who had been on standby on the transport boat had already entered the water and hung the armor on the crane rope.

At the same time, two fully humanoid armored wetsuits are being prepared on the main deck, and the sailors are dragging out even stranger diving devices that will make the hairs stand on end at first glance!

The Seeker was carrying six expensive fully humanoid armor diving suits, which were over-specified, and one or two would normally suffice, and the others would later be allocated to the Great Shark or any salvage vessel in the company that needed these expensive equipment.

The salvage company is not only a treasure hunt, but also occasionally undertakes underwater rescue and repair work, although this level of armor diving suit is not much business, but once there is, it will definitely make a profit.

Besides, Zhang Nan's energy group's submarine oil exploration project has been launched, and it also needs such equipment, so it purchased 6 sets in one go.

The fully humanoid armor wetsuit is easy to use and flexible, but it will be slightly inconvenient when encountering large objects on the bottom of the sea, so the "Seeker" is also equipped with a half-human armor wetsuit, which looks like a bumblebee!

This is a realistic version of Resident Evil, and it is said to be half-humanoid, due to the fact that the large creature that weighs half a ton in the air also has two multi-jointed wrists, and the ends of the upper limbs can be manipulated by divers from the inside of the diving armor.

However, the difference from the full-human armored diving suit is that the lower end of the half-human type is a barrel non-foot structure, which is actually a kind of diving system between the atmospheric diving suit and the one-man submersible.

This is a set of the latest Wasp 2A diving suit manufactured by the British offshore submersible engineering company, which has the ability to sail autonomously, can dive and rotate 360° in the water through the foot control thruster, and can do underwater video, underwater photogrammetry, platform inspection and maintenance, pipeline inspection and salvage work, and the ability to deal with large objects is stronger than that of a full-human armored diving suit.

The upper shell of the wetsuit is made of cast aluminum, the bottom dome is made of machined aluminum, the height is two meters, the maximum working depth is 610 meters, the speed is 1.5 knots, and the life support time can reach up to 72 hours.

However, the maximum life support time of 72 hours is just in case, because people can work in such a monster for a maximum of 8 to 10 hours, otherwise the body will not be able to stand it - like the diving suit that Vita is wearing, 5-6 hours is only the maximum working time, in case he does not come to the bottom of the sea, the life support system of the diving suit can ensure that he will not die within 56 hours.

There are many sets of armored diving suits and unmanned submersibles on the "Seeker", and the maximum life support time of these diving suits becomes a little meaningful, otherwise if there is a problem a few hundred meters underwater, people on the sea will not be able to rescue, unless a set of diving equipment that can reach this depth is delivered within dozens of hours.

Weta got out of the water and got on board, and after inspection, the suit was not damaged in any way, and the luck and quality were good.

After waiting for another half hour, the Searcher's gondola was lifted onto the deck for the first time, with the emerald ore that had tripped Weta over his stomach, and a large amount of "Kaber" silver coins piled up next to it—the three divers were going to work for a few hours below, and the salvage would begin.

This large ore, which can weigh sixty or seventy kilograms, is lifted out and placed on the deck, and there are five stout, complete emerald crystals on the surface of the ore, and the other surfaces are inlaid with dense small crystals.

The thickest crystal is much larger than the other five, all as thick as Zhang Nan's upper arm, and after sinking underwater for nearly 300 years, the crystal still glows with a charming luster in the sun.

Pretty!

These 6 crystals are almost all bright emerald green with a slight blue color, Zhang Nan took out a 10x magnifying glass and looked at it for a while, and found that there were a very small amount of fine carbon monoxide bubbles and a gas-liquid solid inclusion that looked like a cube.

Is it bad to have inclusions?

Of course it's not good, but like ruby, emerald crystals generally contain a large number of inclusions, cracks, and these impurity defects are small under 10x magnification, not a size, just quality, this is the top color!

Putting the ore into a large mobile tank filled with seawater, Zhang Nan dialed the phone number of the CEO of his jewelry group, La Buse Brown, and said, "Brown, let me ask you something, how big is the largest emerald crystal now?"

Brown, who was in the United States, knew that his boss had gone on a treasure hunt in the Caribbean, and when he heard this, he felt that he had made a discovery, and his mind turned and said: "I remember that it should be 7025 carats, 69 found in Colombia." ”

"Oh, then it can stand aside, just fished up a piece of ore, and one of the crystals on it is bigger than it. ”

"How big is it and how is the quality?"

Brown asked a little anxiously, to know that the top emeralds are not inferior to the existence of top diamonds - the world's recognized four major gemstones are diamonds, rubies, sapphires, emeralds, as for other "gems" can generally only be classified as "half treasures", although there are also expensive ones, such as top red spinel, and the mineral deposits are dominated by Zhang Nan's mining company Paraiba tourmaline.

But no matter how high the price of other "gems" is, the international prestige is still not comparable to that of the traditional four gemstones.

Regarding Brown's question, Zhang Nan said: "The weight is hard to say, anyway, it is at least as thick as my upper arm, and the inclusions and cracks are almost invisible to the naked eye, and it takes 10 magnifying glasses to see the point."

Color...

Bright green in emerald green. ”

As soon as Zhang Nan finished speaking, he heard Brown on the other side of the phone say, "Boss, this is trouble!"