[Rockhounds] ajoite in quartz vs. chrysocolla in quartz?

[Jeanne Rhodes-Moen]

I got some tumbled stones on ebay that were listed as chrysocolla from 
an estate parcel. they are quartz/chalcedony with blue in it, which I 
assumed were gem silica/chrysocolla in quartz, but I began to wonder how 
one can tell if it is chrysocolla vs. ajoite?  I'm recutting the stones 
into cabs...and getting some gorgeous peices, but wasn't sure if it is 
gem silica or ajoite. Some of them look a bit different that my other 
gem silica, incl. some lighter, more opaque, pale  blue material, though 
parts of it are the typical teal or turquoise color, and some of it is 
more swirly material (not evenly distributed).

Jeanne