Opal

OpalThis "Round Cabochon" cut gem has a beautiful colorless interior in transmitted light, but in reflected light it shows the highly desirable and seldom seen COLOR FLASH or "Contra Luz" effect with a beautiful rainbow like array of color! The color flash is best seen in sunlight or with a strong flashlight against a black background, and this stone was photographed under a strong light to better illustrate the effect. When strongly lit, this stone shows

Item #PARISPAK014

and completely eye-clean gems are very hard to find

very slight inclusions

It has a very attractive Cushion Brilliant cut

You're not seeing the best of what the stone has to offer from the photos

This piece is essentially a pseudomorph of one iron oxide replacing another (i

with good sized sections inside the crystal that are WATER CLEAR when backlit

but it's certainly rare and very attractive

It is incredibly rare to have FIVE individual phosphate species all on one specimen

and they are beautiful up close

tabular bladed Baryte crystals forming beautiful "rosette"-shaped aggregates coating virtually all of the display side of the specimen

extremely rare