Jasper is a term which describes various forms of Chalcedony (Jasper is Chalcedony) which do not fit into other categories of Chalcedony such as Agate, Carnelian or Chrysoprase etc.. See our Chalcedony page for a complete description of what Chalcedony is.
Bruneau Jasper is a Jasper which has a combination of brown and also a cream color which is distributed in the form of swirls which sometimes can look like hills.
It is a good hard material which takes a very high polish.
Mookite Jasper is a special form of jasper which has reds, yellows, and tan colors.
This is a form of Jasper which is Butterscotch colored.
The top photo shows a large chunk of Butterscotch colored Jasper that I have.
The loower photo shows a closeup of the same piece. You can see that it has a nice rich color and is also very hard which means it will take a very nice polish.
I will be adding photos of examples of Jasper shortly.
Denton Anderson,
Gemologist & Gem Cutter
click photo for Video
Graduate Gemologist, GIA, GG
Over 20 years of experience.
