is a trade name for a yellowish green variety of Diopside.
It should not be confused with Chrome Diopside as Tashmarine
does not contain any chromium and is a lighter shade of
green. The color of Tashmarine is probably due to its
iron (Fe) content and is described as "medium intensity bluish
green to slightly yellowish green." The original
Tashmarine source was a mine high in the mountains of
Xinjiang Province, China but it has also been found
is a trade name derived from
"tash" as the word for "stone" in many of the
Pharsee-based Central Asian languages, and "marine"
meaning "ocean" in Latin. Hence, the
ocean colored stone. Tash is also the nickname of
Natasha, the daughter of Eric and Kathe Braunwart,
the owners of Columbia Gem House, the company that
first brought the gem to the market.
Tashmarine is touted as being
the first new
gem variety discovery of the 21st
century. The first Tashmarine was discovered in China
2001 and Columbia Gem House launched this gem
on the world market for the first time in 2002.
Columbia Gem House is a Vancouver, Washington-based firm
that specializes in making markets for new gemstones.