Specimen #2441

Name: Bytownite (Feldspar)

Type: Gem

Locality: Mexico

Favorite? N

Fluorescent? N

Size: 8.67 mm x 7.13 mm

Weight: 2.04 ct

Acquired: 2012-05-25

Source: Arkenstone Auction

Label: N

Comment: In the group of gem Feldspars, one of the most rare in the world is Bytownite. This stone is an attractive, well cut, "straw" color "Quantum Emerald" cut gemstone that is nearly eye clean. It is very rare to find any faceted gems of this material, simply because most gem dealers don't carry them, and to have a stone with such brilliant concave faceting is especially nice. This stone came from some older material and is a great stone of an uncommon Feldspar species.

Minerals: Bytownite ((Ca,Na)(Si,Al)₄O₈)

There is one picture on file

M02441-01.jpg:

Bytownite (Feldspar), Mexico - FOV: 7.2 x 10.7 mm - 2.04 cts