|Aren't these pretty? Garnets in schist from the Wrangell mine, Petersburg district, Alaska. Yes,|
I know these are not from Wyoming, but they are very attractive and give you a general idea of
the common crystal habit of many garnets.
|Almandine garnet (about 1 inch in diameter) from the Teton|
Yes, I found many garnets in mica schists of Archean (more than 2.5 billion years in age) and Proterozoic age (600 million years to 2.5 billion years in age) in the cores of many of Wyoming's mountain ranges. But I also found them in a 1.4 billion year old pegmatites (coarse-grained granites) in the Sherman Granite in the Laramie Mountains, and also found them in every kimberlite I investigated. And many of these kimberlite pipes also have diamond along with chromian diopside. These rare breccia pipes erupted during the Cambrian and Early Devonian in Wyoming and in neighboring Colorado.
|Wyoming traffic jam (sketches by the GemHunter).|
And there are many other places to look for gem garnet in Wyoming - some of the better localities are listed in my recent book on gemstones.
|Don't horse around - get out there and look for gemstones.|
|When I began mapping the Colorado-State Line district, I found several rounded and sheared pyrope-almandine|
megacrysts (giant crystals like this one sitting next to a .45 caliber cartridge. These range from several inches to about 2
|This is what the gem-quality pyrope garnets and their angry ants look like in the field.|
|Wow! All of these pyrope and chromian diopside gems were collected by Dick Kuchera from the group of lamprophyre diamond pipes on Cedar Mountain|
|Amazing how these ants in the basin pick up the gemstones - and my gosh, they|
even cut them for you for a price.
|Diamond indicator minerals associated with the Sloan kimberlite in Colorado. These two Sloan pipes have a considerable|
diamond resource associated with them, as well as all of these beautiful gemstones. Likely hundreds of millions of carats of colored gemstones that companies always ignore.
|One of my favorite rocks - a kyanite eclogite I collected from the Aultman kimberlite in Wyoming. The nodule consists of|
chromian diopside, kyanite and garnet. I later found another of these that was about 5 times larger.
|Mining Districts and Mineralized areas of Wyoming (after Hausel)|
A few books by the GemHunter. See more at Amazon