"This kind of stone is relatively rare. It is as rare as alexandrite. It is a type of feldspar. Its hardness is not high, but such a small stone can be polished to produce facets."
"It's very rare. This is the first time I've seen this kind of crystal." He shouted to release his spiritual consciousness, and immediately noticed the difference of this kind of crystal.
"There are many such crystal structures, all of which are called equiaxed crystal systems. That is, the crystals are in the form of dodecahedron or octahedron. They are more often in the form of round granules and granular aggregates. There are also many colors, from blue to deep sky blue.
They are all available, including white, grey, light yellow, light green and light red.
There are gem-grade transparent and opaque ones, and opacity is also divided into grades, such as glass, or simply with a grease luster. These are all gem-grade and can be used to be processed into various gemstone jewelry." the potential guide explained.
road.
Han Peacock saw that the blue ashlar emitted various colors under the illumination of the light. Needless to say, this large crystal was all of gem quality.
Perhaps seeing Han Peacock's gaze, the dive guide said again: "Blue ashlar generally does not have luminescence, but a few have orange-red fluorescence under long-wave ultraviolet light, with a hardness of 556, so it is brittle. It is produced in alkaline volcanic rocks. It is occasionally seen in Wei
Contact zone between crystal rock and dolomite.
Mainly produced in Vesuvius, Italy, Rhineland, Germany, Colorado, Montana, Quebec, Canada and other places. Its transparent crystals can be ground into reverse gemstones, and the opaque blocks can be used as substitutes for lapis lazuli. Some people think that the blue square
Stone is one of the main constituent minerals of certain lapis lazuli stones.”
"This stone is also a small crystal, and the price is extremely expensive." Song Min said again.
"Have you seen it?" Han Peacock asked curiously.
Song Min said with a smile: "I saw it in a beauty's jewelry store. I misread the decimal point at first and thought the price was already very expensive, but it turned out to be 10 times more expensive!"
"I feel that as long as it is purely natural, even if it is a little expensive to buy, it will be returned to you after a long time." Han Kongque said with a smile.
"The crystals of this stone are very small and easy to cleave. That is to say, after the crystal is stressed, it often breaks in a certain direction and produces a smooth plane, which is called cleavage. Therefore, blue ashlar is not suitable for inlaying."
Submerged channel.
"This knowledge is really not known to ordinary people." Chen Qing sighed at this time. Every time he was with Han Kongque, he would learn something.
Chen Rui smiled and said: "Not many people know about it. Of course, I mean people who don't play with stones and minerals. There are also many stone enthusiasts who are just starting out."
Yuan Peng also said: "If you are studying geology, minerals, jewelry appraisal and other majors, you must have learned it."
Han Kongque said: "That's of course. How can people in the entertainment industry think that it has no collection value? If this stone is revealed to the industry, it won't be a question of whether anyone wants it, but that even if you want it, you can't get it.
Condition."
"Things are rare and valuable" has always been an unbreakable truth. A large part of collecting is also based on "rarity".
Many stones have little commercial value and are rarer. However, those with small crystals are more expensive.
There are indeed not many blue ashlar crystals, but due to the low hardness of this stone, few people use it as a ring.
"For those of you who like to collect facets, if you travel to the Mediterranean coast, they are available in many cities. The more typical places are Morocco and Sardinia in the Mediterranean." Finally, the dive guide did not forget to advertise. She is a tour guide.
, become more familiar with this.
In the midst of the commotion, Han Peacock took out a lot of small ores and asked the diving guide to help identify them one by one, and he really identified a lot of good things.
For example, a piece of ore with a light red color, Han Kongque thought it was some kind of rare ore. Unexpectedly, after identification, it turned out to be a light red silver ore.
Han Kongque remembered how surprised he was when he discovered this kind of ore. Why? It was because there were too many of this light red ore.
Thinking of collecting so much silver ore, Han Peacock's face twitched a little. Compared with other ores, silver ore is the least valuable.
However, if this is used as a simple mineral specimen, it still has a certain value.
Light red silver ore is also called "arsenic sulfur ore". The crystal is a sulfate mineral of the trigonal crystal system. The crystal is short columnar and usually in the form of dense massive and granular aggregates.
Bright red, but the surface can gradually turn dark due to the action of light, with streaks of brick red, translucent, and diamond luster.
The artificial crystal of light red silver ore can be used as laser material. It is mainly found in lead-zinc-silver hydrothermal deposits. It is often the last mineral formed in the hydrothermal process and is the mineral raw material for silver refining.
Han Peacock searched for various ores on the seabed. In fact, he originally wanted to find gold and silver ores. He thought this should be the easiest to find, but later, he simply forgot that there were two kinds of ores, gold and silver ores.
Unexpectedly, he thought that gold and silver mines had never been found, and he did not expect that a piece of light red ore would actually be a silver mine.
Silver mines are naturally worthless, but they are still useful as mineral specimens, so Han Kongque did not put them away because of their value. Instead, he stored them separately and put them on display when the Mining Expo was held.
"Hey, another piece of hexagonal crystal. It's so heavy and silver-white in color. It can't be silver ore. Silver ore is not that heavy." Han Kongque accidentally obtained a piece of silver ore, so he naturally focused on the silver-white one.
In terms of ore, isn't this kind of ore more like a silver ore?
But the piece of ore he took out was unexpectedly heavy. Such a heavy ore was definitely unusual.
Looking carefully at this piece of ore, it is opaque but has a metallic luster. It seems to be another piece of metal crystal.
Under the light, the reflected color of the logo is tin white with light blue, and you can even see some green and orange light. If you look carefully, you can also see red light.
Han Peacock did a little calculation and found that the density of this ore is very high, which is why it is so heavy, reaching 22 grams per cubic centimeter?
Such a density is rare. Han Peacock checked the densities of various substances and found that this is a rare element.
"The parallel-axis section has clear double reflections, weak to medium inhomogeneity, light pink, red, bronze and gray to dark blue? It's really interesting. Is this iridium-osmium ore?" Han Peacock soon knew what style it was.
From the density point of view, the blue-gray metal osmium is the champion among metals. The density of osmium is 2248 grams cubic centimeter, which is equivalent to 2 times that of lead, 3 times that of iron, and 42 times that of lithium. One cubic meter of osmium has 2248
Ton weight.
Iridium-osmium ore, which mostly contains a little platinum, rhodium, ruthenium, copper, iron, etc., is produced in ultrabasic rock chromite-type platinum deposits and sand mines, and is closely related to natural platinum, iridium-platinum ore, sulfur-nickel-palladium-platinum ore, chromium
Spinel and other combinations.
The world's famous producing areas include the Urals, Chaco in South America, northern Colombia, and Oregon in the United States.
Osmium mainly exists in osmium-iridium ore. The osmium-containing solid is roasted in the air, and the volatilized alcohol-alkali solution is absorbed to obtain the osmate salt, which is then reduced with hydrogen to obtain metallic osmium.
Osmium can be used to make ultra-high hardness alloys. Alloys of osmium with rhodium, ruthenium, iridium or platinum are often used as record players, fountain pen tips and bearings in clocks and instruments.
Osmium belongs to the platinum series elements. Platinum series elements exist almost entirely in a single substance state and are highly dispersed in various ores, such as raw platinum ore, nickel copper sulfide ore, magnetite, etc.
Platinum group elements almost without exception co-exist to form natural alloys.
In ores containing platinum series elements, platinum is usually the main component, while other platinum series elements can only be discovered through chemical analysis due to their relatively high content.
Since osmium, iridium, palladium, rhodium and ruthenium all form ores together with platinum, they are all found in the residues after platinum extraction from platinum mines.
Osmium is very easy to distinguish. Its crystal form is a hexagonal thin plate crystal, so Han Peacock can easily remember it.
In just a short while, Han Kongque found a lot of osmium ore. Its density is so special that even without using spiritual sense to distinguish it, it can be easily distinguished by just weighing the weight.
However, there was a lot of osmium ore, so Han Kongque never handled it. Now that he got it, he discovered that it was unusually heavy.
"This is not bad. It's also a precious metal." After getting so much osmium ore, Han Peacock laughed.
At this time, he was searching for memories. He remembered that he found a lot of such ores at that time. Because the color was not very pleasing, almost all of them were silvery white, tin white or blue gray, so Han Peacock just collected some that were exposed in the process.
Beyond metal mud.
Even so, there are a lot of them distributed inside the chaotic space.
Thinking that there are more osmium ores on the seabed, Han Kongque smiled. It seemed that his treasure map could be worthy of the name. It was just a platinum group element ore, so it could be called a treasure and deserved it.
Osmium is an element in the sixth period of the periodic table of elements and a member of the platinum group metals. It is a heavy platinum group metal and is the densest metal currently known. Its density reaches 2259 grams cubic centimeter, its melting point is 3045, and its boiling point is above 5300.
Osmium is a hexagonal dense lattice, gray-blue metal, hard and brittle. When pounded in an iron mortar, it will easily turn into powder. Osmium powder is blue-black, and osmium metal powder can spontaneously ignite.
Osmium vapor is highly toxic and can strongly irritate human eye mucous membranes, and in severe cases can cause blindness.
Metal osmium is very stable in the air, and powdered osmium is easily oxidized. Concentrated nitric acid, concentrated sulfuric acid, and sodium hypochlorite solutions can oxidize it.
It easily reacts with oxygen at room temperature to form osmium oxide s2, and when heated can form s4 which is volatile and highly toxic.
Osmium can be used as a catalyst in industry to synthesize ammonia or perform hydrogenation reactions. By using osmium as a catalyst, a higher conversion rate can be obtained at a temperature that is not too high.
If you mix a little osmium into platinum, you can make a hard and sharp osmium-platinum alloy scalpel. To be continued