Human World

November birthstone: Choose either topaz or citrine

November birthstone: Two golden colored, transparent colored gemstones, one a natural crystal and one faceted.
A natural crystal and a faceted topaz. Topaz is 1 of the 2 options for the November birthstone. The other choice is citrine. Image via Didier Descouens/ Wikipedia (CC BY-SA 3.0).

Topaz, one of two November birthstones, an exquisite gem of many colors, is a much sought-after gemstone for jewelry. In ancient times, people believed that topaz possessed magical and healing qualities. Its name may originate from the Sanskrit word for fire.

Colors of the November birthstone

Topaz occurs in a range of magnificent colors: pale blue, pink, red, brown, varying shades of yellow, and even black. Pure topaz itself is a colorless stone. Red and some pink topazes get their colors from chromium atoms in the crystal. Most other colors occur due to minor element substitutions and defects in the crystal. Some colors are unstable and can fade away. In other stones, heat can cause color changes. High-energy irradiation of colorless topaz can transform it to blue gemstones.

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Chemically, topaz is an aluminum silicate mineral containing fluorine and hydroxide (a hydrogen-oxygen molecule). Strong chemical bonds within topaz make it the hardest of silicate minerals, rating 8 on the Mohs scale. According to Geoscience Australia, high concentrations of flourine – a condition needed for topaz formation – are geologically rare. They explained that topaz forms in cavities in certain igneous rocks:

The crystals grow in the late stages of a magma cooling, when there is enough fluorine to enable the formation of topaz. Some topaz crystals grow after hot fluids (hydrothermal solutions), rich in fluorine, flow through cracks in rocks that have already cooled.

Glittering faceted gemstones in several colors: round, oval, square, and triangular.
Different colors of topaz. Image via Michelle Jo/ Wikipedia (CC BY-SA 3.0).

Topaz on display

Topaz gemstones occur in many sizes, from tiny crystals to large rocks. One of the biggest uncut topaz stones, a specimen from Brazil, weighs almost 600 pounds (270 kg). It’s on display at the American Museum of Natural History in New York.

And one of the largest cut topazes in the world – the American Golden Topaz – resides at the Smithsonian Museum of Natural History in Washington D.C. It weighs 10.1 pounds (4.6 kg) and is about 7 inches (18 cm) in length.

Uses for topaz

The lively fire, clarity, colors and hardness of topaz make it ideal for jewelry such as necklaces, brooches and bracelets. People sometimes mistake the brilliantly cut, colorless, pure topaz for a diamond. Because of its rarity, topaz is an expensive gem. The most valued and rarest color is red. Imperial topaz – sherry-colored varieties of brownish-yellow, orange-yellow and reddish brown – are the most popular topaz stones. They command high prices, as do pink stones. Light blue and pale yellow topaz are of less value, but are nevertheless stunning gemstones.

Besides its use in jewelry, topaz has industrial applications. It’s used as a refractory material in kilns and furnaces because it maintains its strength under extreme heat. That property also makes it useful as a mold for molten glass and metals.

Brazil is the largest producer of topaz, the most notable source being the Minas Geranis region. Topaz is also mined in several countries including Pakistan, Sri Lanka, Russia and Australia. And in the United States, people have found it in Utah, Texas and California.

Topaz lore

The gemstone’s name, topaz, may have originated from the Sanskrit word meaning fire. There’s also a more convoluted alternate story. The gemstone’s name might be from an ancient Greek island in the Red Sea called Topazos. The island, supposedly difficult to locate, was where people mined a yellow stone. Most now think that stone is actually chrysolite.

In ancient lore, the topaz had the power to cool boiling water. These gemstones supposedly made their owners cheerful, giving them pleasant dreams. People also believed that those who wore topaz would have a long life with beauty and intelligence.

During the Middle Ages, people believed that gemstones with special engravings held great powers. The 13th century Book of Wings by Ragiel said about the topaz:

The figure of a falcon, if on a topaz, helps to acquire the goodwill of kings, princes, and magnates.

As medication, people tried to cure fevers with topaz. They added powdered topaz to wine to prevent asthma and insomnia. They believed that a topaz held in the hand of a woman during childbirth lessened her pain.

Saint Hildegard, a 12th century German Benedictine abbess, recommended topaz as a cure for weak vision. People immersed the stone in wine for three days and nights, then rubbed the liquid on the eyes. A 15th century Roman physician claimed to have cured plague sores by touching them with a topaz that once belonged to two Catholic popes.

A chunk of clear light blue topaz, a natural crystal with flat sides.
Blue topaz from Zimbabwe. The rock measures about 1.4 x 1.1 x 1 inches (3.5 x 2.8 x 2.5 cm). Image via Robert M. Lavinsky/ Wikimedia Commons (CC BY-SA 3.0).

Citrine is another choice

Yellow citrine is one of the many colors found in the quartz family. Citrine colors range from a pale yellow, reddish-orange to brown. Occasionally, citrine is a yellow-green color. It’s coloring agent is iron. Also, natural citrine is rare, so most citrine you find in jewelry are heat-treated smoky quartz or amethyst.

Even though yellow topaz and citrine look alike visually, they have a different rating on the Mohs hardness scale. Topaz is slightly a harder gemstone than citrine rated at eight on the Mohs scale, and citrine is a seven. Other yellow gemstones include golden beryl and tourmaline.

A unique gemstone – ametrine – is sometimes unearthed, it’s a mixture of citrine and amethyst. It occurs in the same crystal. It is especially attractive when both the yellow and purple are vibrant and the split is down the middle of the gemstone.

A faceted rectangular gemstone purple at one end fading into yellow at the other end.
A combination of 2 forms of quartz – citrine and amethyst – called ametrine. Image via Wikimedia (CC BY-SA 3.0).

Brazil produces the most citrine. Citrine is also found in Madagascar, the United States, Argentina, Myanmar, Namibia, Russia, Scotland and Spain.

Two pointed, hexagonal natural crystals of a transparent yellow gemstone.
Citrine crystals. Image via Parent Géry/ Wikimedia Commons (public domain).

History of citrine

Citrine comes from the Latin word citrina which means “yellow”.

Using citrine as a gemstone began in Greece starting about 300 BC, during the Hellenistic Age. Since citrine was associated with prosperity, it is also called the “merchant’s stone” or the “money stone.”

See the birthstones for the rest of the year

January birthstone
February birthstone
March birthstone
April birthstone
May birthstone
June birthstone
July birthstone
August birthstone
September birthstone
October birthstone
November birthstone
December birthstone

Bottom line: Topaz and citrine are the November birthstones. Topaz is a hard mineral popular in jewelry, with an enduring mythology of magical and healing powers. Citrine is a member of the quartz family. So November babies have some colorful choices for their birthstone.

Posted 
November 3, 2023
 in 
Human World

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