Monday, July 10, 2017

Quartz, Gold & Silver in Arizona

Hey, I found the original Big Mac in Arizona. However, this one was more
interested in eating me.
Prospecting for good lapidary material in Arizona almost always leads to the gold and silver districts in the State. So, learn a little about gold and silver and you may find some nice chalcedony, quartz and even a little opal to polish. And if you decide that you love the quartz and the gold is not all that exciting - send your gold specimens to me for keepsake. In many gold districts in Arizona, gold deposits are often associated with detachment faults. So, where you find detachment faults in Arizona, you will find old gold and silver mines along with some quartz.

Detachment fault visible above adit at the
Blue Jeep prospect, Arizona
Not too long ago, I spent a few days looking in the Pearce district in southeastern Arizona and published two articles about this area - you will want to get copies of those papers before spending any time in the area (see Hausel, . Wow - just wow! What a place to explore. This place (which I cover extensively in my book on Gold Deposits in Arizona [in preparation]) is filled with great mineral deposits - significant silver and gold, disseminated gold, and then there is even some old copper and turquoise deposits and some opalized quartz. If only I had a mining company, I would pick up this entire district from Courtland Arizona to Pearce to Gleeson. Wow, this place is a hall of fame of gold, silver and copper deposits awaiting to be properly mined.

In this area, like many gold and silver districts in the Basin and Range and Transition zone of Arizona, there often occurs quartz veins that may be partially opalized, some may occur as banded quartz known as ginguro bands, and others may have prismatic quartz and even some amethyst. It is a rock hound's paradise - but keep your firearms handy as you may not only find some great rock specimens, but you may also see a few illegals and drug runners as well as a few other snakes in these areas. Then there is the occasional ghost in the nearby towns.

Check these articles out for more information on this great gold and silver mining district.


And you can find more on my bibliography listed at the GemHunter and at Wiki and Wyoming authors.

Pearce rhyolite contains a lot of secondary quartz - so you
keep the quartz, but send me that golden yellow flakes in
the rock (gold!).



Quartz stockworks in Pearce rhyolite.
When you see stockworks like this,
often there will be some gold and silver
as well as open vugs with prismatic
quartz

More ginguro bands in quartz in rhyolite breccia near the Commonwealth mine, Pearce Arizona. 
prismatic quartz in ginguro vein at Pearce, Arizona

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