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So I understand that this is going to be a very difficult thing to properly do but I am looking to create a vessel for growing crystals. I am not looking to build a Verneuil furnace bit rather a container to heat and pressurise to mimic where they naturally grow. My current thoughts for heating are either a tungsten coil, heated in an argon pressurised container, at about 1000 Kelvin and 300 psi or a Browning generator superheating a container in an oxygen pressurised container. I will either be melting flux which will require a far lower pressure or superheating water to supersaturate it, requiring a lower temperature and the same pressure. What ideas do you have to make a vessel like this?

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  • $\begingroup$ If you're serious about it then you should just buy one. $\endgroup$ – Mithoron Jan 16 '19 at 15:24
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    $\begingroup$ Hydrothermal synthesis is probably the easiest thing to do. All you need is a drying oven, a stainless steel autoclave with a teflon gasket (I even made one with a lathe and used it without any major accidents when I was a student, looked like this one) and some common sense. $\endgroup$ – andselisk Jan 16 '19 at 15:31
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    $\begingroup$ Lots of ES&H issues to deal with appropriately here. Tread carefully. Or just buy the properly engineered one as suggested above... $\endgroup$ – Jon Custer Jan 16 '19 at 16:16
  • $\begingroup$ Thank you very much everybody. I might try the hydrothermal synthesis method to begin with, or at least after flame fusion. Thank you everybody and I will also look into buying one too $\endgroup$ – FrancisRomad Jan 17 '19 at 17:16

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