Wow. today marks 3 weeks since I started this 90 day-in-a-row Blogging journey, I hope you are following along and having as much fun as I am. I am traveling today, so here is a little quick info for you to take with you:
Gemstone That Can Take Heat
Gemstones that can generally take heat from soldering and casting in place are: Diamond, Ruby, Sapphire, Garnet, Cubic Zirconia and Various lab grown colored gemstones.
Gemstones that can NOT take heat from soldering and casting in place are: Emerald, Opal, Jade, Amethyst, Topaz, Peridot, Coral, Aquamarine, Tourmaline, Topaz, Pearl, Lapis Lazuli, Turquoise and Onyx as these gemstones may burn, crack or discolor when exposed to high heat.
For soldering or casting in place, gemstones should be high quality, dimensions are accurate, free of flaws and inclusions that can turn milky, frosty or crack when heated.
Ultrasonics and Stones
Thanks for stopping by and coming on this journey with me.
Now go have a Great Day!
Doug
So for stones that can’t take steam or ultrasonic, how do you get them clean after polishing?
I would clean with a soft tooth brush and soap. Then a polishing cloth.
Great chart – thank you! What do you think about moissanite?
Great chart. All the posts are so useful, very much appreciated, I am learning stone setting now so the blogs are very timely
Sent from my iPad
Your style is very unique compared to other folks I have read suff from.
I appreciate you for posting when you have the opportunity, Guess I’ll just book
mark this site.
Thank you!
Doug
Do the stones need to be cooled down slowly rather than quenched?
Tom, for steaming or a hot ultrasonic, there is no need to slowly cool the piece, it will not get over 212 degrees farenheight (100 celcius) which will not harm the majority of stones. Now if you are using a torch, you NEVER want to quench a piece with a stone after heating. The thermal shock will DESTROY the stone.
Hope that helps.
Doug
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