Congratulations, you've discovered an Andesine Gemstone!!
There are several mysteries associated with Andesine. For one thing, no one seems sure exactly what to call it. Sometimes it is called Andesine
and sometimes Andesine-labradorite
. Then there is the question of its origin. No one seems quite sure where it comes from. The original reports said the Congo, then China, then Mongolia or Tibet or south India.
Andesine occurs in a range of colors, from red to honey-red to orange, yellow, champagne and green. It has a hardness of 6 to 6.5 on the Mohs Scale, with a vitreous to dull luster. It is transparent to translucent. Due to its hardness, it is not an ideal gem for rings, though it is as hard as tanzanite.
The recently discovered andesine should not be confused with Oregon sunstone. The name Andesine derives from its first discovery in the Andes mountains in South America. Its cousin, labradorite, was first discovered in Labrador in Canada. The geographic variation is not surprising, since Plagioclase is a major constituent mineral in the Earth's crust. It is entirely possible that Andesine occurs in locales as geographically varied as Africa, Tibet and south India.
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