Amazonite Value, Price, and Jewelry Information

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A nine-tailed fox from Chinese mythology, carved from amazonite, 9” x 4”. Photo courtesy of liveauctioneers.com and Saxon Minerals, LLC.

A green to blue-green variety of microcline, amazonite makes a wonderful gemstone for cabbing and carving.

Amazonite Information

Data Value
Name Amazonite
Is a Variety of Microcline
Crystallography Triclinic
Refractive Index 1.522-1.530
Colors green, blue-green
Hardness 6-6.5
Fracture Uneven to conchoidal
Birefringence 0.008
Cleavage Perfect
Luminescence Weak olive green, possibly medium to faint red SW, yellow-green LW
Luminescence Present Yes
Luminescence Type Fluorescent, UV-Long, UV-Short
Optics Biaxial (-)
Optic Sign Biaxial -
Luster Vitreous
Specific Gravity 2.54-2.63
Enhancements Dyeing, wax impregnation, coating, irradiation.
Typical Treatments Dyeing, Infusion/Impregnation, Irradiation, Surface Coating
Transparency Translucent to opaque
Phenomena Asterism (extremely rare), aventurescence.
Absorption Spectrum Not diagnostic
Formula KAlSi3O8
Etymology Named after the Amazon River in South America.
Occurrence Microclines like amazonite occur in acidic alkali-rich plutonic rocks; also in rocks such as pegmatites, granites, syenites, and schists.
amazonites - Virginia and Canada

Amazonites, Amelia Court House, Virginia, (1 inch); Canada (~2 inches across). Photo © Joel E. Arem, PhD, FGA. Used with permission.

What is Amazonite?

Also called “Amazon stone,” amazonite is the only microcline you’re likely to encounter as a gemstone. Microclines are potassium feldspars with a triclinic crystal structure.

Amazonite color can range from pale green to dark green and blue-green. These specimens usually (but not always) show white mottling.

tumbled amazonites

Tumbled amazonites. Photo courtesy of liveauctioneers.com and Easterly Auction Company.

Does Amazonite Make a Good Jewelry Stone?

By 5,200 BCE, cultures in Northern Africa, Mesopotamia, and the Indus Valley had begun cutting amazonites. Lapidaries all over the world have fashioned this gemstone into cabochons, beads, and carvings for millennia.

Babylonian cylinder seal

Babylonian cylinder seal made from amazonite, 15th century BCE. Photo courtesy of liveauctioneers.com and TimeLine Auctions Ltd.

With a hardness of 6 to 6.5, amazonites are softer than other common jewelry stones, like quartz and beryls. This means amazonites are still susceptible to scratching from everyday hazards, like household dust (which has a hardness of 7). With perfect cleavage, amazonites may also break if accidentally struck.

However, these gems will still make excellent jewelry stones for earrings, pendants, and brooches, which usually don’t receive rough wear. With protective settings, they can also make beautiful ring stones.

Amazonites lack transparency, so they’re seldom faceted. Nevertheless, aficionados of opaque gems might appreciate the appearance and novelty of such a piece.

amazonite and topaz ring

Sterling silver ring featuring a faceted, oval-cut amazonite with white topazes. Photo courtesy of liveauctioneers.com and 3 Kings Auction.

Are There Synthetic Amazonites?

Scientists have synthesized microcline feldspars for research purposes. However, there are few scholarly references to synthetic or lab-created microcline, and there’s no indication amazonites are specifically created or that any of this material makes its way into jewelry use. Furthermore, feldspars are very common, and amazonite isn’t too well-known as a jewelry stone. Thus, it’s unlikely any great consumer demand exists for lab-created amazonites.

Despite this, you can easily find “synthetic amazonite” for sale online. Nevertheless, it’s not clear if these stones are actually lab-created or just lookalike materials. These may be instances of the term “synthetic” being used in the popular sense of “not real.”

Amazonite Treatments

Mined amazonites may also receive a number of treatments, such as impregnation (to conceal fracture inclusions) and coatings and dyes (to improve color). With irradiation, white microcline specimens may also turn into blue-green amazonites. This is a rare but stable treatment.

Some people may consider treated gemstones, even natural stones, to be “not natural.” Those so-called “synthetic amazonites” offered for sale may just be treated, natural amazonites.

Is Amazonite a Jade?

Amazonite isn’t an expensive gemstone. On the other hand, jade is very popular and can command high prices. Vendors may market amazonite as “Amazon jade,” since some green specimens may resemble jade and consumers may assume it’s a variety of that famous material. Some may be willing to pay more for a supposed jade, too.

Of course, feldspar, jadeite, and nephrite are distinct gem species. Gemologists can easily distinguish these gemstones. “Amazon jade” is a misleading name. If you encounter “Amazon jade” for sale, buyer beware.

Consult our list of false or misleading gem names for more examples.

Is Amazonite Found in the Amazon?

Amazonite has been associated with the Amazon, by name, since 1701 and possibly earlier. The noted mineralogist August Breithaupt officially named the stone “amazonite” in 1847, after an unspecified type locality near the Amazon River.

Although amazonite does occur in Brazil (in the states of Minas Gerais, Paraíba, and Rio Grande do Norte) and Peru (in Huancavelica province), there are no known sources of this mineral within the Amazon rainforest itself or near the eponymous river.

cut amazonites - Minas Gerais, Brazil

Cut amazonites, Minas Gerais, Brazil. Gem cutting by Afonso Marques. Photo by Eurico Zimbres. Public Domain.

Where is Amazonite Found?

Brazil and Peru produce fine amazonites, but this gemstone also occurs in many localities across the world.

In the United States, the area around Pike’s Peak, Colorado and Amelia Courthouse, Virginia produce beautiful, gem-quality amazonites.

amazonites with smoky quartz - Pike's Peak, Colorado

Amazonites with smoky quartz, 7.9 x 6.0 x 3.9 cm, Pike’s Peak area, Teller County, Colorado, USA. © Rob Lavinsky, www.iRocks.com. Used with permission.

Ethiopia has also emerged as a producer of top-quality amazonite.

amazonite crystals - Ethiopia

Amazonite crystals on matrix, Ethiopia. Photo by Géry Parent. Public Domain.

Other notable gem-quality sources include the following:

  • Canada; China; Madagascar, Mozambique; Myanmar; Pakistan; Russia.
flame tower carving

Freeform amazonite “flame tower” carving, Madagascar. Photo courtesy of liveauctioneers.com and Easterly Auction Company.

Stones Sizes

Hobbyists can usually buy amazonite rough by the pound. Consumers can find cabochons in almost any size.

How to Care for Your Amazonites

Untreated amazonites may have internal fractures, which can expand if subjected to mechanical cleaning systems, like steam or ultrasound. Treated stones may also lose their coatings and/or fillers through these processes. Instead, clean these gems with a soft brush, mild detergent, and warm water. Consult our gemstone jewelry cleaning guide for more care recommendations.

Victorian pin

Victorian 10k gold pin with hand-chased decoration and an amazonite cabochon. Photo courtesy of liveauctioneers.com and Reverie.

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