Garnet: Birthstone of January
Many of us know that garnet is the birthstone of
January and is the perfect gem for women to wear. But what else do you know
about garnets? When it comes to the "aristocracy" of garnets, the
first reaction of many people must be the fanta stone, tsavorite and emerald cheap promise rings. However, there is
a kind of garnet is more precious than them, and many jewelry practitioners
have never seen it before. It's called "Rainbow Garnet".
The Rainbow Garnet
Saying the name "rainbow garnet" alone, many
people may not be able to imagine what it looks like. Rainbow garnet is a kind
of garnet with halo effect, so it is also called halo garnet. Foreign websites
generally call it Iridescent Garnet or Rainbow Garnet. However, "rainbow
garnet" does not belong to a variety of garnet minerals. Its essence is
actually a garnet necklaces for
girlfriend with the interference and diffraction of light. This
interference and diffraction of light mainly occurs in some andradites.
According to research, the rainbow garnet produced in Mexico is a crystalline
mineral composed of andradite-essonite.
Take the rainbow garnets produced in Mexico as
example, which are often with green and stripe halo. According to research,
there is a concentric layered structure inside the rainbow garnet produced in
Mexico, which is formed by the overlapping of the crystalline layers of andradite
with a higher iron content and essonite with a higher aluminum content. Due to
the strong geological effect caused by hydrothermal invasion, the surface of
the garnet infinity bracelet crystal
layer was repeatedly eroded to form a thin film. The thickness of such a group
of composite crystalline layers is generally less than 1 micron, so light
interference occurs. To the naked eye, colorful halos appear in the gem.
Compared with ordinary andradite, the crystals of rainbow garnet are more
fragile, most of the gemstones produced are smaller and the yield is very
small.
The halo effect of garnet is rare, and its discovery
process is traversal bumpy. Although it was discovered in the Nevada mining
area of the United States as early as 1943, the garnet produced at that time
did not reach the gem level fingerprint
jewelry. Then in calcite mines in Sonora, Mexico, such interference garnets
were also found in 1954, but at that time they were considered to be
low-quality opals and ignored. It was not until 1985 that at the Sonora Gem
Fair, the cut rainbow garnet began to circulate as a gem. Although the
"rainbow garnet" really circulated late, but its gorgeous time is
like a flash in the pan.
The rainbow garnet produced in Mexico is very famous,
but its own output is very small. In addition, mining rights were shelved for
nearly a decade, and by the early 1990s, rainbow garnets name bracelet were gradually disappearing from the market. It took
only five years from circulation to disappearance.
In addition to Mexico, there is also a rainbow garnet
vein in Nara, Japan. In 2004, a group of mineral hobby groups from Nara came to
Tianshan Village, Yoshino District, which has been known for its garnet
production since ancient times. They unexpectedly discovered this extremely
rare gemstone-rainbow garnet, which is the discovery process of Japanese
rainbow garnet.
In fact, not only "rainbow garnet", many
natural gemstones are facing the fate of extinction. Not only the tanzanite custom birthstone rings mining area in
Tanzania and Hetian jade in Xinjiang, but also the rubies we are familiar with
are facing an endangered situation. Natural gemstones are "limited
editions" of nature, and are even more precious because of their rarity. However,
it is not the best choice to take all the beauty as your own. Beauty can be
appreciated, can be treasured, but more should be protected.