how to facet
gemstone main cabochon creation
min data

Mineral: quartz
Gem: carter mountain agate (cryptocrystalline)
Size: 17x61 mm & 28x38 mm & 35x44 mm
Carat: 50+ ct & 46 ct & 57+ ct
Cut: freeform cabochon
Origin: Wyoming
General Info: Agate (achates) was named from the river Achates, now the Drillo, in Sicily, where the stone was first identified. It is cryptocrystalline quartz (micro crystals) usually with a banded pattern (although not always).
Additional Information
Carter Mountain agate from NW Wyoming. The slab was purchased on e-bay and I can find no other information about this agate other than it's name and general location. It takes a great polish and has a "cellular" structure, with nice pastel colors throughout.

Cabs cut by author. Used as center in the last cab. Center section of last stone is carter mtn. and more intense in color than most.