Silver refining has been used from ancient times to change the characteristics of the metal. Early metallurgists refined silver by heating it a couple hundred degrees above its melting point and holding the metal at an elevated temperature for a period of time.

Hennis claims that months later and without his permission, the EPA built a $2.3 million water treatment facility on the property and the agency continues treating water and storing waste there.

Knowing how and when to deduct the cost and expenses of the vehicles used in the prospecting or mining operation can have significant tax implications.

Casperson said he is not worried about businesses subverting the language in the bill because the DEQ would still have the authority to halt the new construction if it is deemed environmentally unsound.

…2017 was just the first year with a small increase after a huge drop off in exploration activity. It may take many years of future increases to get back to where the activity was in 2012, as projected increases in exploration spending are seen to be slow and steady.