This is a gorgeous hand picked petrified wood  specimen of the extinct conifer Araucaria. It comes from Madagascar. The age of the specimen is approximately 220 million years old ( Triassic Period). 

The specimen is POLISHED ON ONE SIDE, but both sides are gorgeous! BOTH SIDES ARE BEAUTIFULLY FLUORESCENT!!!!

Although Araucaria is not rare, it is hard to find really nice specimens such as this one! Please see photos 1, 15-24.

The specimen displays some really interesting fluorescence under long wave ( photos 8-14 ) and short wave ( photos 1-7) UV light . Any purple is reflected light.

Short wave photo taken with Super Bright lamp, long wave with 36 watt Way Too Cool lamp. Please note special UV lamps are mandatory to visualize the fluorescence. 

Last photo shows unpolished back side of specimen.

All photos taken with my iPhone :-)

Size:  10 x 7 1/8 x 3/4 " 

Weight:  3 lb  12.2 oz ( 1.708  kg )

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Thanks for looking!

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