Wednesday, July 31, 2013

Gemstone of the Week: Tugtupite

(Image found on classicgems.net)

Tugtupite is a pretty rare and rather unusual gemstone.  It was discovered in 1962 in Tugtup Agtâkorfia, Narsaq municipality, Greenland.  Most Tugtupite found will be opaque or translucent, but on occasion small transparent crystals are also found, but they are very rare.  Tugtupite may be white, crimson (or other shades of red/reddish-pink), pink, green, or blue, although most often it will be various shades of pink or reddish-pink.  It's luster may be sub-vitreous, dull, greasy, or waxy. Tugtupite is only a hardness 4 so care must be taken with it.  An interesting thing about Tugtupite is that it is a fluorescent gemstone,  Under low-wave UV lighting, Tugtipite with fluoresce a bright orange.  This is not the only lighting it will react to, Tugtupite also reacts, in various ways, when exposed to regular UV lighting, sunlight, or X-rays; darkening or becoming brighter and then lightening back up afterwards.  Tugtupite is presently known only to be in the Kitaa Province in Greenland, the Canadian province of Quebec, and the Northern Region of Russia.

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