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| SIBERIAN AMETHYST https://gemologyonline.com/Forum/phpBB2/viewtopic.php?f=28&t=19603 |
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| Author: | Amethystminer [ Fri Apr 04, 2014 3:58 pm ] |
| Post subject: | SIBERIAN AMETHYST |
We have been mining for more than 5months now somewhere in Nigeria. The pit was known to be producing Siberian type of amethyst and was left since 1992,due to thesame problem we are facing now. We are mining manually,and anytime we are about to reach VUGHS, we always experiencing collapsing of wall along the terrain of the main pit. The collapsing area is now forming a shape of "gutter" of about 4meter wide and 8meter long from where Vughs are. Please,i need your advice on and probably what may likely caused this problem. Thank you |
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| Author: | Qld Barry [ Fri Apr 11, 2014 11:49 pm ] |
| Post subject: | Re: SIBERIAN AMETHYST |
If you go a little furthur down the forum, you will find "Miners corner". Post some info, and shots there, you will get some replies, I'm sure. Barry |
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| Author: | Qld Barry [ Sat Apr 12, 2014 6:16 am ] |
| Post subject: | Re: SIBERIAN AMETHYST |
To help you, we need to understand more about what you are doing. Is this an open pit, dug by machinary originally, or hand dug by artisan miners?(like me) Are the walls battered back, ie stepped? How deep? how stable is the material normally? You need to get some photos please. How do you know you are about to hit vughs? The more info you can give, the more likely some-one will be able to help. I'm sure there are some mining engineers on the forum. Barry. |
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