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Post by the light works on Sept 29, 2013 14:20:00 GMT
in other words, there are such thing as natural CZ, but most of the CZ jewels you will see on rings are made to order - and hence, not as common as diamonds, because there is no real need to stockpile them.
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Post by User Unavailable on Sept 29, 2013 14:40:52 GMT
Yes. I'm not entirely sure how rare CZ is, but it is clearly more practical to make it than mine it. This is probably a mixture of cost, the size of the crystals and the purity. From what I can tell you can make large flawless CZ crystals in a day - which of course is ideal for laser focusing elements. You can also add additional minerals to alter the colour of the crystal during the process, allowing you to create exactly the colour of stone you (or the customer) wants. No. Cubic Zirconium is ONLY synthetic and man made. It is Zirconium Dioxide. Zircon, which occurs naturally is a Zirconium Silicate, that folks often wrongly call CZ.
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Post by the light works on Sept 29, 2013 14:46:59 GMT
Yes. I'm not entirely sure how rare CZ is, but it is clearly more practical to make it than mine it. This is probably a mixture of cost, the size of the crystals and the purity. From what I can tell you can make large flawless CZ crystals in a day - which of course is ideal for laser focusing elements. You can also add additional minerals to alter the colour of the crystal during the process, allowing you to create exactly the colour of stone you (or the customer) wants. No. Cubic Zirconium is ONLY synthetic and man made. It is Zirconium Dioxide. Zircon, which occurs naturally is a Zirconium Silicate, that folks often wrongly call CZ. that clarifies it.
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Post by silverdragon on Sept 30, 2013 8:04:53 GMT
:)I am confused....[daily... ] Ok, so, CZ IS only man made, Zircon Silicate is the natural "flavour" of the same thing.... Is that right?...
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Post by User Unavailable on Sept 30, 2013 15:06:36 GMT
:)I am confused....[daily... ] Ok, so, CZ IS only man made, Zircon Silicate is the natural "flavour" of the same thing.... Is that right?... Naturally occurring CZ has been found 1 time, in microscopic amounts in 1937. As far as I can find, it has never been seen again. All CZ used is man made, because there is no known source of naturally occurring CZ. CZ is synthesized from Naturally occurring Zirconium Oxide. The naturally occurring Zircon gemstones are Zirconium Silicate, so no, not the "natural" flavor of the same thing.
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Post by the light works on Sept 30, 2013 15:31:16 GMT
:)I am confused....[daily... ] Ok, so, CZ IS only man made, Zircon Silicate is the natural "flavour" of the same thing.... Is that right?... Naturally occurring CZ has been found 1 time, in microscopic amounts in 1937. As far as I can find, it has never been seen again. All CZ used is man made, because there is no known source of naturally occurring CZ. CZ is synthesized from Naturally occurring Zirconium Oxide. The naturally occurring Zircon gemstones are Zirconium Silicate, so no, not the "natural" flavor of the same thing. so the speculation would be they found just enough to figure out CZ was a thing and then figured out how to make it in the lab?
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Post by User Unavailable on Oct 1, 2013 2:48:14 GMT
Naturally occurring CZ has been found 1 time, in microscopic amounts in 1937. As far as I can find, it has never been seen again. All CZ used is man made, because there is no known source of naturally occurring CZ. CZ is synthesized from Naturally occurring Zirconium Oxide. The naturally occurring Zircon gemstones are Zirconium Silicate, so no, not the "natural" flavor of the same thing. so the speculation would be they found just enough to figure out CZ was a thing and then figured out how to make it in the lab? From what I've read*, various gems have been synthesized by melting the required ingredients together since the late 1800s and I have found mention of being unable to produce stable CZ in 1899 due to no container being able to hold molten Zirconium Oxide at high enough temps, for long enough to produce Cubic Zirconium, it wasn't until the soviets created their Skull Crucible and found the correct mix of heating, stabilizers and cooling then sintering the crystals, in the the early 1970s that stable Cubic Crystalline Structure Zirconia were able to be synthesized. So I kind of think the 3 phases of crystalline structure of Zirconium Oxide were known before the existence of naturally occurring CZ. The 3 phases of the structure go into "greater order" with increased temps. Monoclinic is the "normal" crystalline structure phase at temps less than 1170degrees C. The next phase is Tetragonal at 1170 - 2370 degrees C, the 3phase is Cubic at temps greater than 2370 degrees C. Early attempts to synthesize CZ, resulted in the Zirconium Dioxide reverting back to its monoclinic phase as it cooled. Later attempts once higher heat was able to be held longer, resulted in unstable and fractured crystals as they cooled. Then the Soviets finally figured it out. * I've had to piece this info together from many different articles and science journals, online. It isn't all in one place. Way to many sources to link citations, but if anyone really wants to know feel free to use google!
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Post by silverdragon on Oct 1, 2013 6:42:51 GMT
Very interesting.... but not something you can try at home?.........
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Post by User Unavailable on Oct 1, 2013 16:28:13 GMT
Very interesting.... but not something you can try at home?......... Not unless your cook stove and cooking pot can reach and hold temps greater than 2370 C !
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Post by silverdragon on Oct 2, 2013 8:24:18 GMT
You havnt tried the wifes apple pie strait-from-the-oven, have you?....
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