ArtFire

Great looking Tiffany Stone (Bertrandite) Cabochon. This is a very nice example of this beautiful and rare material.

A silica and/or calcium carbonate base predominately of opalite, and agate (chalcedony), but not excluding jasper, quartzite, and dolomite. Purples caused by fluorine gases and blacks form manganese oxide.

The photographs show front, side, and back of cabochon as well as any other views that may help to describe the cab.

SIZE (millimeters): 20mm Wide x 30mm Tall x 6mm Thick
DOME: Slightly Domed
BOTTOM: FLAT.
EDGE: Crisp Edge
EDGE HEIGHT: 4mm
POLISH: Good
KNOWN TREATMENTS: None
BACKING: None
(Note: 1"=25.4mm all sizes and weights are approximate)

Recommendations:
This is a good hard cabochon and should work well for most jewelry types. As always, protect your cabochons and cabochon jewelry from scratches by storing in individual bags or compartments.

Each of our cabochons has been meticulously hand crafted. These are not mass produced tumbled cabochons that you can buy at your retailer.
There is a slight bevel on the side of each cab to aid in setting the stone.
Please Note: This cabochons is free-form. We do not cut our cabochons to be calibrated. Cabochons are custom cut for beauty and design. Many of the cabs are cut by "feel" and are cut as each stone "wants" to be cut. Any cab that happens to be calibrated is coincidental.

Tiffany Stone, Bertrandite