Topaz Prospecting in the Rockies

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I was able to attend a Lake George Gem and Mineral Club field trip to a private claim near Tarryall Mountain, one of the premier Topaz Prospecting areas in Colorado!  The area is steep and rocky which makes a good hike; with the side benefit of having an outstanding view!  We ventured up the mountain and I started a good day immediately in finding a topaz laying in the ground on the hike up the hill, albeit very small.  Then just a few minutes later I found another clear topaz, this time larger and clear enough to be a cutter stone!

Small piece of topaz found on the hike up.
Small piece of topaz found on the hike up.
Alluvial clear topaz I found on the hike up the hill.
Alluvial clear topaz I found on the hike up the hill.  Good enough for a small cut gem!

Once settled in near the top of the hill, I started to dig in an area that was previously dug to try and figure out what to look for.  I know that Topaz forms in standard pegmatite like the smoky quartz and microcline/amazonite that I dig in the Pikes Peak Batholith, but I usually don’t dig in such rocky places.  I dug a little uphill and in between two large rocks about 3″ deep in the sand out popped another topaz! This is the first one I have ever “dug”; everything else has either been on the ground or from excavator diggings at the Dorris’ Topaz Mountain Gem Mine. I dug for several hours more in this location and only pulled out a gemmy smoky quartz which was under a large (probably 100+ lb) rock I pried away.

Started digging and immediately pulled this out of the loose gravel.
Started digging and immediately pulled this out of the loose gravel.  Definitely a cutter!

I proceeded downhill and started digging in more clay filled dirt.  I found a couple of smoky quartz (not very good ones however).  I was meticulously going through the clumps of clay and I found a topaz completely concealed in one.  This was the last topaz I found, but it was a fully euhedral crystal with a slight blue color.  It wasn’t gemmy like the others, but specimen quality!

This topaz was covered in red clay/mud and the only reason I found it was I was thorough in checking each clump of mud.
This topaz was covered in red clay/mud and the only reason I found it was I was thorough in checking each clump of mud.

Throughout the day I found some very small but ultra gemmy smoky quartz and Hunter found a topaz on the ground (during the rain which illuminated it) on the way out, so we both had a great day!  I used a screen all day long but that didn’t produce any topaz; luckily topaz when exposed from the ground typically “pops out” at you and it is obvious what you’ve found.  I did have the one covered in clay that did not “pop”, however, so obviously screens and working clay is still necessary when prospecting for topaz.

Small but gemmy smoky quartz crystals
Small but gemmy smoky quartz crystals

I have been invited to visit another private claim in the area later in July, so hopefully I’ll have some more “wild dug” topaz stories soon…and of course later this summer/fall I hope to find my first Devils head topaz too!

The finds of the day...all relatively small but my first "hand dug" topaz I've ever found!
The finds of the day…all relatively small but my first “hand dug” topaz I’ve ever found!

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