Category Archives: Achroite

Achroite tourmaline – colorless tourmaline gemstones

A Cool Bi-Color Pear Shaped Tourmaline.

In my last package of rough from Africa there was a very well worn, blocky piece of what appeared to be a medium light spice green tourmaline.  Upon a closer  look it turn out to be a bi color with … Continue reading

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Achroite it is by a hair, oval.#740

Voting on whether an almost colorless tourmaline is an Achroite of just a member of the IceT group can get political.  This very nice eye clean oval might just have enough to be a very very weak wheat, but the … Continue reading

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Achroic, colorless round from Afghanistan#1167

This standard round brilliant is colorless and without inclusions.  It came from Afghanistan and really does produce  some of the purest tourmaline in the world.  The biggest draw back to colorless tourmaline, as a gemstone, is its lack of dispersion, … Continue reading

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Achroite under any reasonable light, round.#609

I have a number of standard round brilliants that were cut from a lot of Afghanistan material I purchased years ago.  I could see a touch of blue in part of the lot, that use to be half of a … Continue reading

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Maybe a touch of blue in an Achroite, round#798

I just rediscovered the key to finding the blue in these nearly colorless standard round brilliants from Afghanistan, direct sunlight, how new and novel.  This gemstone still almost failed the blue test.  It is very bright and flashy and weighs … Continue reading

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Afghanistan Achroite with an eye clean heart.#793

This Achroite from Afghanistan may have a touch of blue, but with my old yellow eyes, I can’t see it.  The round standard brilliant is eye clean and can not anything by bright.  It weighs .48 carats. Bruce

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Faintest hint of blue and the IceT group is helpfull, round#786

Afghanistan tourmaline is amazingly pure at times.  This standard round brilliant is another example of such purity.  It has just the faintest touch of blue, in a sparkling clean body.  It weighs .33 carats. Bruce

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From light blue rough comes a Achroite, Afghanistan#784

A small standard round brilliant that is very brilliant.  It is pure water white and came from rough that you could see just a hint of blue in.  Well I can not see it now, so I am changing the … Continue reading

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Bright water clear round.#774

Keeping in line with past decisions, this extremely bright and flashy Achroite standard round brilliant  will accept no invitations to join any groups.  It might of had a history of being very lightly blue, but that is in the past.  … Continue reading

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Another round of Achroite for the boys.#765

I think that I saw a touch of blue in this standard round brilliant, in the past, because I could see it in the rough.  Now I  only see one of the brightest, purest water white Achroites I have cut.  … Continue reading

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A touch of blue leads to an IceT round.#763

You could easily miss the touch of blue in this otherwise completely colorless round.  But with the help of my IceT consultants I see it this time.   The bright and flashy stone appears to have a sprinkling of tiny inclusions … Continue reading

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An Achroite, simply pure, colorless and open round.#526

My father use to tell me over and over again that nature abhors a vacuum to his profound enjoyment.  Well I think that nature abhors a tourmaline without color.  So I always question if an Achroite has been heated or … Continue reading

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When does colorless become white, round#506

When you’re dealing with transparent gems, I guess colorless is a better term than white to describe the stone.  Now if the transparent gemstone becomes less transparent because of a lower grade crystal and a network of internal flaws should … Continue reading

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A ghost round for a tourmaline from Afghanistan#724

It is difficult to see really pale colors in tourmaline because it has a habit of picking up ambient colors and showing off your shirt, the walls etc.  This Achroite has barely enough color to make the IceT group.  Under … Continue reading

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This colorless (achroite) tourmaline is eye clean and bright, round#703

This .58 carat standard round brilliant is eye clean and from the same lot as #702 and I refer you to the preceding post for a better description of this stone. Bruce

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A very bright eye clean achroic (colorless) round Afghanistan#702

Afghanistan produces some of the most outstanding tourmaline in the world.  It is amazing to me how the pastel colors it produces can be so pure and bright.  This small standard round brilliant has a purity of being,without color, to … Continue reading

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Colorless Barion Cushion Cut, probably heated.

The piece of rough came via Thailand and was probably heated.  I used the colorless rough to make my first trial run with the Barion Cushion Cut Pattern.  It all came out well and the colorless tourmaline (achroite) is part … Continue reading

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Possibly heat colorless oval

This colorless oval could have possibly been heat treated since it went threw  Thailand from where ever it was mined.  The principle reason I purchased the rough was to see if heating effect it, in a way that I could … Continue reading

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Included gray that is stable, droplet of color.

I was once reading a list of tourmaline color published by the Gem Institute of America (GIA).  It did not list gray.  I can see why they would over look it, but I love a good solid gray and this … Continue reading

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A white droplet of color touched with blue.

  The rough for this very very pale blue standard round brilliant came from Afghanistan.  It originally was part of bicolors that broke apart.  I have cut many included light pink rounds from the pink half of the broken bicolors,  … Continue reading

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Another Achroite Challange in the Round#1078

  I have never tried to describe so many different colors in tourmaline at one time before.  My inconsistencies on the official boxes that protect them and keep them ordered is a bit disconcerting.  Didn’t I try to spend that … Continue reading

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White bread sort of wheat oval#1001

  A bright clean oval that is so pale that I have to look at it closely to call it wheat.  Now this is not your whole wheat variety, a bleach look that has very little brown and might even … Continue reading

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Achroite with a secret#966

There is always a danger in seeing what you want or expect to see in a pale colored stone with tourmaline.  Many to most tourmalines have two colors (a/b and c axis) and those colors can be quite sensitive to … Continue reading

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Achroic, a colorless call in tourmaline#923

Now you have to be careful when you’re evaluating color in a very pale gemstone, it can catch its apparent color from the world around it.  Now an emerald cut is a color cut, so thousands of facets and magnificent … Continue reading

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Smaller whiter round#917

    I probably shouldn’t spend much time on a color less .40 carat round standard brilliant, but I have been force to compare several Achroites while writing and this little gem is the whitest of the bunch.  Afghanistan has … Continue reading

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Achroite small round#915

  This small standard round brilliant probably came from Afghanistan.  It has a  rather flat crown and is simply without color.  It is not clean, but has not large naturals.  It came from the center of a crystal with a … Continue reading

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Achroite round a ghostly gem#903

  Achroite is an old trade name for colorless tourmaline (Elbaite).  It is from the Greek, like many names, and it is a find name, but one I have had made relatively little use of.  Why you might ask.  Well … Continue reading

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