How do you heat treat rubies to enhance their beauty? At what temperature and for how long do you heat them?
457010
It's a complicated procedure! And it really depends on the rough material. \n\nIn the US, Ted Themelis sells special ovens and equipment for heat treatment.  He also gives courses.  You can reach him via his website: http://www.themelis.com/\n\nGood luck!
418451
Peridot is not normally treated. There is also no commercial synthetic for Peridot.  It is a lovely stone but it is a little soft (hardness about 6.5) and brittle.  It is susceptible to certain chemicals (acids) & thermal shock so it needs a bit of care, especially if it is set as a ring.\n\nI need to see your stone to be sure, but here are some questions that might lead you to solve this mystery:\n\nFirst off, are you certain this stone is a Peridot? Most jewellers are not gemologists and may not be able to correctly identify a stone.  If proper gemological tests have not been conducted on this stone, it could turn out to be anything! \n\nIf you are certain it is a Peridot: \nDo you wear your ring often? Do you use creams or sprays? Do you cook or clean with it on? Observe the surface of your stone.  Is the polish dull? Are the facets abraded? These cut factors can affect the quality of color of your stone and may cause a stone to look "cloudy".\n\nHope this helps!
744212
take a dark colored cloth and a light colored cloth.expose them to heat or sunlight.u will see that dark colors get hot very quickly than light colored cloth.switch off the source and u will see that the heat is quickly lost by dark cloth than light cloth.
421627
When you see colors in the rock, it's an imperfection.  Hold it to a light.  But ultimately take it to a jewler.
961772
1. I'll leave it to you...\n2. Hmm.. Add some marmer rocks to make the heat spread equally in the solution.. \n\npeace\nvixklen
60081
Try doing flame tests; adding certain compounds to fire make really awesome colors; it's kind of like putting on your own fireworks show.  Check out http://webmineral.com/help/FlameTest.shtml
211282
suggested procedure to be done\n\n1. boil water with salt>>>Brine Solution\n2. let it cool until it becomes warm\n3. soak your hands within 15 minutes everyday before sleeping\n4. do this within a week or more depending upon the healing process\n\nhope this helps! =)
567188
Wow it is scary reading some of these answers... Take it to a reputable jeweler in your town and they will test it using  a touchstone and several different types of nitric acid to test. If this is done wrong you could ruin your piece of jewelry.... fire is certainly not your answer... gold meltsssssssssssss..most jewelers and I mean jewelers can tell just by looking, though sometimes even they need to test a piece...
908650
Hydrate them, with some lip balm. The best thing to do is prevent the wind burn all together.
122259
wow open question here...what is the end result and use. if it is say for automobiles it would be copper, nickle and chrome for cheep jewerlery sure gold last...many possible answers
849824
Use a no rub solution.  No, take them out and let them sit in the case for a few hours.
352910
yeeaaahhh....Mix 'em!!!  YYUUUMMMMMMYYYYYY!!!!!!!!!!!\n\n:)  :)
759217
Burn it in a sprectrophotometer.  Look at the emitted light.
1016304
place them in a container full of cornmeal and cover them up with it. I think you are supposed to put it in  a dark place. this will draw the moisture out of them and let them keep their shape . not sure how long it takes but i saw a friend of mine do it.
826242
rubbing 2 things together to create heat.\nRub yor hands together really fast and see what happens.
69838
Here is a "recipe" for gun bluing\n\nBlue-Black Finish on Steel\n \na. Place object in molten sodium nitrate (700-800 degrees F) for 2-3 minutes. Remove and allow to cool somewhat; wash in hot water; dry and oil with mineral or linseed oil. \n\nb. Place in following solution for 15 minutes:\nCopper sulphate 1/2 oz.\nIron Chloride 1 lb.\nHydrochloric acid 4 oz.\nNitric acid 1/2 oz.\nWater 1 gallon\nThen allow to dry for several hours; place in above solution again for 15 minutes; remove and dry for 10 hours. Place in boiling water for 1/2 hour; dry and scratch brush very lightly. Oil with mineral or linseed oil and wipe dry.
304001
I suggest that you create a supersaturated solution first. Reason being that the more highly saturated the solution, the better the formation of the crystal and the larger the end product. This can easily be done by heating your solvent to a very high temperature and stiring in copious amounts of whatever is going to make up your crystal. Lower the heat as it goes and you should idealy end up with a very viscous solution, not so much of a liquid but more to the kind of stuff you get when you mix a bit of cornstarch with water. Thereafter dump everything in a beaker or bowl and suspend a thin wax thread in the solution itself. Cover up the bowl and leave to set for a few days. If you have done it correctly you should see a very nice, large crystal forming. Just a note though, don't let the thread touch the bottom of the bowl or even any thing other than the solution, or your crystal will be lopsided