A valuable, rare & very beautiful type of opal, Mexican contraluz rutile opal is well known to display a stunning multi colour rainbow display when exposed to transmitted light. This is known as contraluz and is only found in the type of opal, hence the name.
Pictures have been taken under transmitted lighting.
This is a lovely freeform polished piece. As the material is so rare it is seldom cut into cabochons to avoid waste of such fine material.
Quantity - 1 Carat Weight - 1.67 Gem Type - Natural Mexican Fire Opal Size / mm. (L/W/D) - 10mm/8mm/4mm Origin - Mexico Treatment - Unheated / Untreated
