What makes amazonite blue-green?

Trace lead combined with water in the feldspar structure, producing colour centres. Copper, which many sources claim, is not responsible. The colour can fade with prolonged heat and strong light, which is a practical consequence of it being a colour-centre effect rather than a stable pigment.

Is it from the Amazon?

No. The name comes from an eighteenth-century association with green stones traded from South America, which turned out to be jade rather than amazonite, and no significant amazonite deposit has been found in the Amazon basin. The name stuck regardless, which happens more often in mineral naming than you might expect.

Did Egypt really use amazonite?

Yes, extensively. It appears in Predynastic and dynastic jewellery and inlay, and fragments of the Book of the Dead were written on amazonite tablets. Egyptian colour symbolism worked by colour rather than species, so amazonite, turquoise and green feldspar could satisfy the same amulet requirement.

Can I wear amazonite in a ring?

Not in one you work in. At hardness 6 with two cleavage directions it scratches from ordinary dust and can split under a knock. A pendant, a bezel-set ring or a pocket stone are better forms, and it costs little enough to replace.

How do I tell amazonite from dyed howlite?

Hardness and texture. Howlite is 3.5 and scratches easily with a steel pin; amazonite at 6 does not. Genuine amazonite also usually shows a fine white grid or streaky internal pattern, while dyed howlite shows grey-to-black veining that dye has coloured around.

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Feldspar & the feldspathoids · Green ray

Amazonite

Amazonite is microcline feldspar coloured blue-green by trace lead, and it has an unusually long working history: Egyptian craftsmen cut it for amulets and for chapters of the Book of the Dead, and Mesopotamian workshops used it earlier still. The name is a mistake, since no significant deposit has ever been found in the Amazon basin.

At a glance

Blue-green microcline worked in Egypt for the Book of the Dead, and named for a river it has never been found beside.

Composition: microcline with lead
Crystal system: Triclinic
Hardness: Mohs 6
Family: Feldspar & the feldspathoids
Colour ray: The green ray
Main sources: Russia, Madagascar, Brazil, Colorado, Ethiopia
Care: Hardness 6 with cleavage. Safe in water, but chips easily.

Themes

plain speech the clear answer boundary green-blue saying the thing

What it actually is

Microcline, a potassium feldspar, triclinic, hardness 6, with two cleavage directions.

Its blue-green colour was debated for a long time and is now attributed to trace lead combined with water in the structure, producing colour centres. Copper, which people often assume, is not responsible.

Amazonite frequently shows a fine white grid pattern, caused by the same kind of exsolution lamellae that produce the flash in other feldspars, though here they show as a visible texture rather than an optical effect.

The famous association is with smoky quartz, and specimens from the Pikes Peak region of Colorado, with blue-green amazonite crystals alongside smoky quartz, are among the most sought-after mineral specimens from North America.

Colour can fade with prolonged heat and strong light.

Where it comes from

Russia's Ilmen and Ural deposits are historic and produced the material used in Russian decorative work. Madagascar and Brazil supply most tumbled and carved material today. Colorado's Pikes Peak produces the classic specimens, and Ethiopia has become a significant source of fine deep material.

Egypt sourced amazonite from the Eastern Desert and from Nubian deposits, and it appears in jewellery, in inlay and in carved objects from the Predynastic period onward.

Mesopotamian sites have produced amazonite beads that predate Egyptian use.

The name comes from an eighteenth-century association with the Amazon river based on green stones traded from South America, which turned out to be jade rather than amazonite. The name stuck anyway.

What the traditions claimed

Egyptian use is the substantial history. Amazonite appears in Predynastic and dynastic jewellery, and fragments of the Book of the Dead were written on amazonite tablets. Its blue-green sat in the Egyptian colour scheme alongside turquoise and green feldspar, all associated with renewal and with flourishing.

Because Egyptian colour symbolism worked by colour rather than by species, amazonite, turquoise, green jasper and green feldspar could all satisfy the same amulet instruction, which is why the specific stone is sometimes hard to identify in the texts.

There is no significant classical, Indian or Chinese amazonite tradition, and its modern reputation is recent.

Contemporary practice reads it as a stone of honest and unforced communication, sometimes called the stone of truth or the stone of courage, and ties it to the throat centre in the imported chakra model. That reading dates from twentieth-century crystal writing.

How it is worked with

The modern reading is narrow and usable: amazonite for saying something plainly rather than forcefully. It sits close to blue lace agate in that role and is more robust visually, being a stronger colour.

For anyone who tends to over-explain or to soften a message until it disappears, it is a reasonable object to have on a desk during a difficult email.

At hardness 6 with cleavage it is not a working ring stone. Tumbled pieces, palm stones and pendants are the sensible forms.

Keep it out of prolonged strong light and heat, which can fade the colour.

Clean with a soft cloth and lukewarm soapy water. No ultrasonic cleaners, since vibration can propagate a cleavage crack.

Buying it honestly

Amazonite is inexpensive and rarely faked outright, but three substitutions appear.

Dyed green quartzite and dyed howlite are sold as amazonite. Hardness separates them: howlite at 3.5 scratches with a steel pin, and quartzite at 7 will not scratch at all where amazonite at 6 will.

Some green jade and serpentine is sold under amazonite-adjacent names.

Genuine amazonite usually shows the fine white grid or streaky pattern from its internal structure, and a completely uniform blue-green with no texture is worth questioning.

Some material is dyed to deepen the colour, and dye pools in cracks under magnification.

Handle with care

Hardness 6 with two cleavage directions: chips and splits under impact. Fades with prolonged heat and strong light. No ultrasonic cleaning.

Питања за размишљање

What do I need to say plainly that I have been saying carefully instead?
Where does softening a message make it disappear?
What am I explaining at length because I do not want to state it in one sentence?

Follow the thread

🔵

Blue lace agate

The other stone of unforced speech

🌈

Labradorite

The same family with internal light

🔵

Turquoise

The blue-green Egypt used beside it

🪨

Feldspar & the feldspathoids

The family this stone belongs to

🟢

The green ray

The ray it carries

Frequently asked questions

: Trace lead combined with water in the feldspar structure, producing colour centres. Copper, which many sources claim, is not responsible. The colour can fade with prolonged heat and strong light, which is a practical consequence of it being a colour-centre effect rather than a stable pigment.
: No. The name comes from an eighteenth-century association with green stones traded from South America, which turned out to be jade rather than amazonite, and no significant amazonite deposit has been found in the Amazon basin. The name stuck regardless, which happens more often in mineral naming than you might expect.
: Yes, extensively. It appears in Predynastic and dynastic jewellery and inlay, and fragments of the Book of the Dead were written on amazonite tablets. Egyptian colour symbolism worked by colour rather than species, so amazonite, turquoise and green feldspar could satisfy the same amulet requirement.
: Not in one you work in. At hardness 6 with two cleavage directions it scratches from ordinary dust and can split under a knock. A pendant, a bezel-set ring or a pocket stone are better forms, and it costs little enough to replace.
: Hardness and texture. Howlite is 3.5 and scratches easily with a steel pin; amazonite at 6 does not. Genuine amazonite also usually shows a fine white grid or streaky internal pattern, while dyed howlite shows grey-to-black veining that dye has coloured around.

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