December Birthstones
Turquoise
Turquoise is the accepted birthstone for December and is the accepted anniversary
gemstone for the 11th year of marriage.
Colors of turquoise range from sky blue (the most desirable color) to blue
green and apple green.
The name means "Turkish stone," because the trade route that brought
it to Europe used to come via Turkey. The best qualities are found in northeast
Iran (Persian turquoise). However, the southwestern United States is now the
world leader in production. The deposits in Sinai were already worked out
by 4,000 B.C.
At that time the stone was used for jewelry, amulets and in the preparation
of cosmetics. During the 16th century, turquoise was used as currency by the
Southwest Indians.
Although large quantities of beautiful turquoise that have not been color
enhanced are available, today's turquoise is commonly stabilized with plastic
to improve its color and durability. Chalky varieties of turquoise are normally
impregnated with oil or wax to enhance color. This color change may not be
permanent.
Care should be taken to protect turquoise from scratches, sharp blows, hot
water and household chemicals. Do not use a home ultrasonic machine for turquoise.
Tanzanite and Blue Zircon
Tanzanite and blue zircon have become popular alternatives in recent years
for those who prefer faceted stones.