Description: Wow check this nice piece of Natural Wyoming Florescent Opal out. This piece has some great colors not quite as much show on this one, still a nice piece. The oranges yellows greens and purples are amazing in this piece. These photos were taken using a LONG WAVE UV Blacklight. You must use a Longwave black light to achieve these colors. Short wave will have similar effects with varying colors. These pieces have AMAZING colors ! This might make the perfect Lapidary piece or would make and excellent Specimen. It is common to find pieces of Sweetwater agate inside with the Opal. These common opals have several different colors. The piece pictured is the EXACT piece you will receive . We take pride in packing every item very carefully, we ship with priority and insure all of our packages. We offer returns on all our products, if you are unsatisfied with this item, fill free to return it undamaged !!! These wonderful specimens are hand picked in Wyoming. The Bright colors are associated minerals and salts. These salts are partially responsible for the bright varies different colors. The other colors come from the type of rock(s) and there materials . Most of these pieces are from an ancient volcano ash bed that has various sections of ancient sediments . These Volcano opals are mostly common opal, although I have found some spectacular rare precious wyoming opal in some of these pieces . Please feel free to contact me with any questions ! Weight ; 148 grams The piece pictured is the EXACT piece you will receive . We take pride in packing every item very carefully, we ship with priority and insure all of our packages. Color : White / Clear / Translucent / Black Opal (SiO2.nH2O) in general is a precious to semi-precious stone classified as an amorphous mineraloid with 6 to 10% water. A mineraloid is a mineral-like substance that does not yield an exact chemical formula; and like volcanic glass, shows no sign of crystallinity. Opal has a hardness of 5.5 to 6.5 & is fragile to relatively durable semi-precious gemstone. In general, the higher the water content, the less stable the opal. The source of the silica for the opal and chalcedony was interpreted to have come from underlying (silica-rich) volcanic ash beds. The silica was mobilized by percolating water which surfaced in springs. Other known opals from this area range from small cobble size nodules to large boulders encased in caliche. Several varieties of opal and agate are identified: (1) Opaque milky white, tawny to translucent common opal with localized fracture fillings of transparent clear opal. Some have light blue opal with black dendritic inclusions. Some are perfectly transparent. Many are fractured but include large consolidated unfractured pieces of several carats. (2) Translucent light-blue opal enclosed by milky opal which in turn is enclosed by narrow perfectly transparent and banded opal crusts that exhibit a pleasant color play (bands of blue-yellow-violet red) in natural light. Some are enclosed in a thin rim of tan to pink quartz. With further exploration, it is likely that more precious opal will be found. (3) Opal with milky quartz breccia & light gray to light blue translucent to transparent opal clasts & veins set in black opal to black chalcedony matrix. The black opal rarely exhibits color play. (4) Gray black to black translucent opal and agate. Wyoming opal, wyoming agates, Dendritic , Rough specimen , raw opal, Fluorescent rocks & minerals are illuminated with ultraviolet light. They glow with an amazing array of vibrant colors - in sharp contrast to the color of the rocks under conditions of normal illumination. These minerals have the ability to temporarily absorb a small amount of light and an instant later release a small amount of light of a different wavelength. This light emission is known as "fluorescence." This change in wavelength causes a temporary color change of the mineral in the eye of a human observer. The color change of fluorescent minerals is most spectacular when they are illuminated in darkness by ultraviolet light
Price: 30 USD
Location: Buffalo, Wyoming
End Time: 2023-09-27T07:10:21.000Z
Shipping Cost: 4.5 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Modified Item: No
Country/Region of Manufacture: Australia
