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Posts posted by Haderly

  1. Blue opal with fire is pretty rare and I don’t think I have ever seen any as dark blue as that piece. I only know of two places that have blue opal with fire and that is Australia and Arizona. I have some from Arizona that I was lucky enough to dig with a former claim owner. It is not great but sure was nice to have had the opportunity to get some. There are several other locations that have blue opal without fire but it is still not common.

  2. I really like Welo opal but you have to be careful with it. It is a hydrophane opal meaning that it will readily adsorb and expel water. It will also absorb skin oils and discolor so when used is jewelry it should not be set in a fashion that allows skin contact. Getting it wet should be avoided and when wet it should be very slowly dried. I had a very big finished cab explode when I forgot it in my truck. I only forgot it for a couple hours but Arizona heat coupled with being fully hydrated caused disaster.

  3. Thanks, guys ... it weights a little over 177 grams or about 885 carats ... It does resemble the gem silica samples I found on eBay .... Actually it is identical to this rock I found on eBay ....Would some like to make me an offer on it? ... If so, email me at ron@az-gold.com ... Thanks, Ron

    Ron – If your rock looks like the EBay link you provided then it would be Gem Silica. If you can see light through a corner then it would be closer to Gem Silica than Chrysocolla.

  4. I would call it highly silicated Chrysocolla. Gem Silica used to refer to transparent chalcedony that is naturally colored blue by copper. The best Gem Silica should cut clean transparent stones that are free of inclusions. As the availability of high grade Gem Silica has decreased and the price increased more people are starting to lump in highly silicated Chrysocolla. Another trade name that is often used but more specifically to stuff out of Mexico is Parrot Wing Chrysocolla.

    As to actual mineral makeup that is extremely difficult without knowing the exact mine and what minerals have been found within the mine. There are over 140 copper minerals but it would be a safe bet to say the red is Cuprite and the Blue is Chrysocolla.

  5. Thanks for the pics Stan and as always good to see ya, did ya get Steve and Max together?

    I dropped Steve off at his motel Sunday afternoon. He had a cab scheduled to take him to Max's that evening. I hope he made it out to do some more detecting.

  6. If my math is correct $45per gram is over $20K per pound…I would wager that you will never get that price for rough. Even $5 a gram or less on finished Bisbee azurite/malachite cabs is pretty common. Bisbee also commands higher prices because of the provenance. I have over 20 pound of Bluebird mine rough that is every bit if not better than Bisbee stuff and it will only sell at $1/gram maximum but realistically a lot less. Your stuff looks great but you are probably in the $20-30/lb range. To get people interested in the material you may have to start even lower until the material has proved worthy of a higher price. I am not trying to be negative and am only stating my opinion since I buy and sell a lot of rocks.

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