Login
-
Recent Posts
- List of facts about tourmaline, an opinion
- No Paraiba in top ten list of most valuable/rarest or beautiful gemstones??
- #261 and a bright red cuprian smile
- Included bright sparkling red round. #261
- Getting threw the winter, 1/3 carat of fire
- The amount of lead in tourmaline.
- Color my world of tourmaline.
- Copper’s limited roll in coloring Paraiba/cuprian tourmaline.
Tags
- achroite
- afghan
- baby pink
- bi-color
- blue
- blue-green
- brown
- closed-c
- color-shift
- color dot
- cuprian
- cutting tourmaline
- dichroic
- dravite
- droplet-of-color
- emerald cut
- golden
- green
- green-blue
- hot pink
- IceT
- indicolite
- medium green
- Mozambique
- Namibia
- non-dichroic
- open-c
- orange
- outstanding
- oval
- pale
- pastel
- peach
- personal story
- pink
- purple
- purple-pink
- red
- rubellite
- seafoam
- shield
- unique
- verdelite
- yellow
- yellow-green
Recent Comments
- Romeo48065 on Laurellite a reverse color change tourmaline is unique.
- toadandspur on Outstanding Achroite with a Mystery
- Bruce Fry on Welcome to a World of Color in Tourmaline
- David Walsh on Paraiba/paraiba type tourmaline and treatments.
- rexguo on Laurellite a reverse color change tourmaline is unique.
Archives
- May 2019
- September 2018
- March 2018
- February 2018
- November 2017
- October 2017
- August 2017
- July 2017
- May 2017
- April 2017
- March 2017
- February 2017
- January 2017
- October 2016
- September 2016
- August 2016
- July 2016
- June 2016
- May 2016
- April 2016
- March 2016
- February 2016
- January 2016
- December 2015
- November 2015
- October 2015
- August 2015
- July 2015
- June 2015
- May 2015
- April 2015
- March 2015
- February 2015
- January 2015
- December 2014
- October 2014
- September 2014
- August 2014
- July 2014
- June 2014
- May 2014
- April 2014
- March 2014
- February 2014
- January 2014
- December 2013
- November 2013
- October 2013
- September 2013
- August 2013
- July 2013
Tag Archives: achroite
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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
A slight bicolor with a peach end and a colorless end emerald cut.
You could call this emerald cut a graded color gems, but I prefer to call it a bicolor with an orange end and a colorless end. The darker, but still moderate pastel, reflects down the long axis of the emerald … Continue reading
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
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
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
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
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
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
Posted in Achroite, Cuprian Tourmaline, Etc.
Tagged achroite, blue, cuprian, purple, unique
Leave a comment
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
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
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
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