|Dry placer?’ at Cedar Mountain, Wyoming. These rounded boulders and cobbles|
are part of a lamprophyre breccia pipe that contains abundant fragments of
eclogite, chromian diopside and pyrope garnet as well as some diamonds
(photo by Richard Kuchera)..
|Core from the Cedar Mountain pipes showing the breccia|
pipe character of these deposits (photo by the GemHunter).
|Abundant chromian diopside, chromian enstatite, pyrope|
garnet and almandine garnet picked out of a Cedar Mountain
pipe (photo by Richard Kuchera).
|Blue ground (weathered kimberlite) in|
the Colorado-Wyoming State Line
district exposed in dozen trench (photo
by the GemHunter).
|Blue ground exposed in highwall of the Kelsey|
Lake diamond mine, Colorado-Wyoming State
Line district (photo by the GemHunter). This
diamond pipe was initially recognized by David
Eggler and then later explored and developed into
a commercial diamond mine by Howard
|Exposed blue ground breccia pipe, Kelsey Lake diamond mine. (photo by the GemHunter)|
|Diamond mill at the Kelsey Lake diamond mine (photo by the GemHunter).|
|Blue ground exposed in badger hole (photo by the GemHunter.webs.com).|
|Jay Roberts in exploration trench in the search for diamonds in Wyoming. The dozer trench dug through sheared Sherman|
Granite (pinkish orange) and intersected blue ground containing diamonds (photo by the GemHunter).
|Backhoe trench in the search for blue ground, Aultman 2 diamondiferous kimberlite, Wyoming |
(photo by the GemHunter.webs.com)
|The Maxwell diamondiferous kimberlite near Kelsey Lake in Colorado. This pipe shows|
as a small, circular depression containing no trees.