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Tanzanite Beads
Tanzanite is the blue-to-violet gem variety of the mineral zoisite, found in commercial quantity only in a small area of northern Tanzania. A modern December birthstone, tanzanite is famed for its deep blue-violet color and pleochroism, and is cut and polished into beads that range from velvety blue to rich purple.
MaterialTanzanite (blue-violet zoisite)
OriginTanzania
TechniqueCut & polished stone
EraNatural stone (December birthstone)
ColorsBlue, violet-blue, purple, with subtle burgundy flashes
What are Tanzanite Beads?
Tanzanite is the trade name for the blue to violet-blue variety of zoisite, a calcium aluminum silicate, colored by traces of vanadium. It has a moderate Mohs hardness of about 6 to 7 and is notably pleochroic, showing blue, violet, and often a burgundy or brownish tone from different crystal directions. The vast majority of tanzanite begins as brownish or greenish rough that is gently heat-treated, a routine and stable process, to bring out its prized blue-violet color. It is found in commercial quantity in only one place on earth, the Merelani Hills of northern Tanzania.
Types of Tanzanite Beads
- Blue-dominant tanzanite: the most prized, sapphire-like blue color
- Violet-dominant tanzanite: rich purple stones, often from smaller rough
- Bicolor / pleochroic showpieces: stones cut to display both blue and violet flashes
- Untreated tanzanite: rare natural-color material, most tanzanite instead being heat-treated
Tanzanite Beads meaning & symbolism
Tanzanite is associated in the crystal community with transformation, intuition, and spiritual insight, and is often linked to the third-eye and throat chakras. As a relatively young gem, its lore emphasizes calm communication and higher awareness. These meanings are traditional and metaphysical beliefs rather than scientifically established facts.
History & cultural significance
Tanzanite was discovered relatively recently, in 1967, in the Merelani Hills near Mount Kilimanjaro in Tanzania. The gem was named tanzanite by the jeweler Tiffany & Co., which introduced it to the world market and chose the name to honor its single country of origin. Because of its limited source and striking color, it rapidly became one of the most popular blue gemstones, and in 2002 it was added as a December birthstone.
Where Tanzanite Beads come from
Found in commercial quantity only in the Merelani Hills of northern Tanzania, near Mount Kilimanjaro, its single source worldwide.
●Merelani Hills, near Mount Kilimanjaro, Tanzania
How to identify Tanzanite Beads
- Genuine tanzanite is strongly pleochroic, flashing blue, violet, and burgundy as it is rotated, a key authenticity sign
- Nearly all tanzanite is heat-treated to achieve its blue-violet color, which is standard and accepted in the trade
- It is only moderately hard (about 6 to 7) and relatively soft for a gem, so very hard, scratch-proof blue stones may be imitations
- Much material sold as tanzanite is actually imitation, such as blue glass, synthetic forsterite, or dyed stone; real tanzanite shows natural pleochroism and inclusions
How they're used
- Cut into faceted beads for luxurious blue-violet necklaces and bracelets
- Worn as a December birthstone and milestone gift
- Used as a striking, single-origin alternative to blue sapphire
- Set into protective settings and pendants where its color and pleochroism shine
Buying guide
When buying tanzanite, focus on color: the most valuable stones show a deep, saturated blue to violet-blue, and you should expect that virtually all tanzanite is heat-treated to achieve this, which is normal and disclosed. Importantly, a great deal of inexpensive material sold as tanzanite is actually imitation, including blue glass, synthetic forsterite, or coated stones, so buy from sources that confirm natural zoisite. Look for genuine pleochroism, good clarity, and clean beads, and remember that real tanzanite comes only from Tanzania.
Care & stringing
Tanzanite is comparatively soft and sensitive, so treat it gently: avoid sharp knocks, sudden temperature changes, and prolonged ultrasonic or steam cleaning, all of which can crack or damage it. Clean it only with warm water, mild soap, and a soft cloth or brush, and keep it away from harsh chemicals and abrasives. Store tanzanite beads separately in a soft pouch, and remove tanzanite jewelry before strenuous activity to protect it from impact and scratches.
Frequently asked questions
Where is tanzanite found?
Tanzanite is found in commercial quantity in only one place on earth, the Merelani Hills of northern Tanzania near Mount Kilimanjaro.
Is tanzanite heat-treated?
Yes, the vast majority of tanzanite is gently heat-treated to transform brownish rough into its prized blue-violet color, a standard and stable treatment.
Is tanzanite a birthstone?
Yes, tanzanite was added as a December birthstone in 2002 and is one of the modern options for that month.
Why is some cheap tanzanite fake?
Because real tanzanite is rare and single-source, much low-priced material is actually imitation such as blue glass, synthetic forsterite, or dyed stone.
How durable is tanzanite?
Tanzanite is only moderately hard, about 6 to 7 on the Mohs scale, so it should be protected from knocks, scratches, and harsh cleaning.