Heated, Bi-Color Benitoite Gemstone
.18 ctw., 2.75 mm
Benitoite Gem Mine
San Benito County, California
Here are two amazing benitoite gemstone.
These are Bi-color, Orange and Blue.
A must have to the rare gem collectors.
They may be small, but are amazing to look at.
Yes, I said did say Orange in the description.
The most popular color for benitoite is that deep blue with violet color that benitoite is known for.
The benitoite blue coloring is 100% natural and any attempts to heat treat these blue benitoite just destroys the gemstones.
The rarest natural color for benitoite is actually colorless or some call them white.
These stones lack the popular blue color, but can look very much like diamonds.
However these crystals are very rare and most often form as very small tabular crystals.
What few people are aware of is that, ONLY these rare colorless benitoite can be heat treated.
When properly heat treated, they will never turn blue, but instead they turn beautiful shades of Peach to Orange.
Very few stones are ever heated and as you can imagine most stones are destroyed during this process,
leaving only very few to ever hit the market in any given year.
Also these heated benitoite not only show the blue fluorescence in shortwave UV lighting,
but also they show red fluorescence in longwave UV lighting.
These beautiful trillion cut gems are very clean!
It is VVS, loupe clean, which is quite rare since the heating process almost always causes issues.
The colors are pale but visible to the eye. A beautiful mix of peachy orange with a slight pink tone and blue.
These gemstonea are even more amazing in the sunlight.
This process for heating colorless benitoite is a proprietary secret and very few people know the actual process.
For this reason, along with the scarcity of the colorless gems, there will never be any commercial production of these colored benitoite.
