Conichalcite -looks like chrysocolla - from the glorry hole in the mine Hydrous calcium copper arsenic oxide Gold Hill Mine Tooele County Utah.
Dave Dyet <a rel="nofollow" class="external free" href="http://www.shutterstone.com">http://www.shutterstone.com</a>  <a rel="nofollow" class="external free" href="http://www.dyet.com">http://www.dyet.com</a>
2007-04-15
<span class="int-own-work" lang="en">Own work</span>