Description
Topaz is a well-known and popular gemstone valued for its high
hardness, attractive brilliance, and wide range of colors. The origin of the name
Topaz is uncertain, with some sources linking it to the Sanskrit word
Topas, meaning fire.
Topaz commonly forms in acidic igneous rocks and pegmatites as
crystals of various sizes. It occurs in a broad range of colors, including
colorless, blue, yellow, golden, pink, peach, orange, red, and brown.
Pink Topaz is considered one of the more valuable color varieties.
Many Topaz gemstones available on the market have undergone heat treatment
or irradiation to enhance or modify their color. For example, some
colorless Topaz can be irradiated and then gently heated to produce attractive
blue colors. Treated blue Topaz may sometimes be visually confused with Aquamarine.
Although Topaz has a high hardness, it has perfect cleavage,
making it vulnerable to breaking from strong impacts. Care should therefore be
taken to protect the gemstone from sharp blows and sudden temperature changes.
Major Topaz sources include Brazil, Germany, Russia, Nigeria, Sri Lanka,
Myanmar, Pakistan, the United States, Mexico, and Iran. Brazil is one
of the world’s most important sources of fine Topaz.
Topaz Care
Topaz is best cleaned using lukewarm water, mild soap, and a soft cloth.
Due to its cleavage and sensitivity to impact, ultrasonic and steam cleaners
are not recommended.
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