Raley Design Studios
Psilomelane Cabochon, 13.20 cts.
Psilomelane Cabochon, 13.20 cts.
Couldn't load pickup availability
This material typically exhibits swirls and alternating layers of black Romanèchite and gray Pyrolusite, both of which are a type of hydrous manganese oxide and can achieve a submetallic lustre (almost mirror finish). This stone appears to be mostly Pyrolusite and has a subtle botryoidal formation pattern when examined closely. Flat, semi-polished back with a beveled edge for ease of setting. You will receive the exact gemstone shown in photos.
Weight: 13.20 carats
Length: 17.37 mm
Width: 12.18 mm
Height: 4.32 mm
Group: Hydrous Manganese Oxide
-Species: Romanèchite-Pyrolusite
--Variety: -
Trade Name(s): Psilomelane, Black Hematite*
Origin: Australia
Enhancement(s): (N) Natural
----------------------------------------------
* Using the term "black hematite" to describe Psilomelane is deceptive and a punishable crime under US Federal Trade Commission regulations. Hematite is an Iron oxide with a different chemical makeup.
----------------------------------------------
American Gem Trade Association Gemstone Enhancement Codes
Enhancement: Any treatment process other than cutting and polishing that improves the appearance (color/clarity/phenomena), durability, or availability of a gemstone.
(N) Natural
No modification; natural stones which are not currently known to be enhanced (or currently has no known modification process).
Shipping
Shipping
Items ship within 1-2 business days Monday through Friday, excluding U.S. holidays.
Share




