December’s birthstones offer two ways to fight the winter blues: tanzanite, and turquoise – both of them, appropriately, best known for beautiful shades of blue.
These gems range from the first mined and used in jewelry (turquoise), to one of the most recently discovered (tanzanite).
Both of these stones are relatively inexpensive, but their beauty rivals even precious gems. Tanzanite often substitutes sapphire, and turquoise is unmatched in its hue of robin’s egg blue.
Whatever your style preference or budget, one of December’s birthstones will match your true blue desires.
Admired since ancient times, turquoise is known for its distinct color, which ranges from powdery blue to greenish robin’s egg blue. It’s one of few minerals to lend its name to anything that resembles its striking color.
The word turquoise dates back to the 13th century, drawing from the French expression pierre tourques, which referenced the “Turkish stone” brought to Europe from Turkey.
Ancient Persia (now Iran) was the traditional source for sky blue turquoise. This color is often called “Persian blue” today, regardless of its origin. The Sinai Peninsula in Egypt was also an important historical source.
The U.S. is now the world’s largest turquoise supplier. Nevada, New Mexico, California and Colorado have produced turquoise, but Arizona leads in production by value, as well as quality. The stone’s popularity here makes it a staple in Native American jewelry.
Turquoise is found in arid regions where rainwater dissolves copper in the soil, forming colorful nodular deposits when it combines with aluminum and phosphorus. Copper contributes blue hues, while iron and chrome add a hint of green.
Some turquoise contains pieces of host rock, called matrix, which appear as dark webs or patches in the material. This can lower the stone’s value, although the uniform “spiderweb” pattern of Southwestern turquoise is attractive.
Turquoise is sensitive to direct sunlight and solvents like makeup, perfume and natural oils. The hardest turquoise only measures 6 on the Mohs scale, which made this soft stone popular in carved talismans throughout history.
From ancient Egyptians to Persians, Aztecs and Native Americans, kings and warriors alike admired turquoise for thousands of years. It adorned everything from jewelry to ceremonial masks to weapons and bridles – granting power and protection, particularly against falls.
Highly esteemed for its striking namesake color and its ancient history, turquoise remains popular through time.
Cultures around the world have admired the distinct color of turquoise since ancient times.
The earliest evidence comes from ancient Egyptian tombs, which contain elaborate turquoise jewelry dating back to 3000 BCE. Egyptians set turquoise in gold necklaces and rings, used it as inlay and carved it into scarabs. Most notably, King Tut’s iconic burial mask was extravagantly adorned with turquoise.
The oldest turquoise mines are located in the Sinai Peninsula of Egypt. One sat near an ancient temple dedicated to Hathor, the Greek goddess of love and joy – worshipped as a protector in the desert and as the patron saint of mining. Egyptians called turquoise mefkat, which meant “joy” and “delight.”
Ancient Persians decorated extensively with turquoise, often engraving it with Arabic script. Turquoise covered palace domes because its sky blue color represented heaven. (This later inspired the use of turquoise in buildings like the Taj Mahal.)
Believing turquoise guaranteed protection, Persians adorned their daggers and horses’ bridles with it. Their name for turquoise, pirouzeh, meant “victory.”
Persians wore turquoise jewelry around their necks and in their turbans. They believed it offered protection by changing color to warn of pending doom. (Turquoise can, in fact, fade if exposed to sunlight or solvents.)
When Turkish traders introduced this “Persian blue” stone to Europe via the Silk Road in the 13th century, they influenced the gem’s name. The word turquoise comes from the French pierre tourques for “Turkish stone.”
Meanwhile, pre-Columbian Native Americans mined turquoise throughout the present-day southwestern United States. Shamans used it in sacred ceremonies to commune with the spirit of the sky.
Apache Indians believed that attaching turquoise to bows (and later, firearms) improved a hunter’s accuracy.
Turquoise became valuable in Native American trade, which carried North American material toward South America. Consequently, Aztecs cherished turquoise for its protective power, and used it on ceremonial masks, knives and shields.
The turquoise-studded silver jewelry that’s commonly associated with Native Americans today originated in the 1880s, when a white trader convinced a Navajo craftsman to transform a silver coin into turquoise jewelry.
While many historic turquoise deposits have depleted over the gem’s long lifetime, some small mine operations (mainly in the U.S.) still produce fine material today.