Could this really be an aquamarine??

[anjiofchaos]

helllo every one out there,

i recently inhertited an Aquamarine like Gem from my grandmother, but the color of the gem ressembles that of a sapphire, and i took the gem to get idetification by tokyo gem labratory (thailand) and by Emil Gem Lab. (Japan). but there was a debate if this was an aquamarine or blue Beryl ,or just simply a rare deep blue aquamarine.
i would like to know the diffrance between the two, i mean i know the aquamarine is from the beryl family, but one of the certifcates just labelled this gem as a blue beryl,so whats going on here??

i would like your comments and opinion on the subject , i''ll post pictures of the gem and the certificates.

 

[anjiofchaos]

here is another pic..

 

[anjiofchaos]

and another one....

 

[T L]

There is a blue beryl that is being unscrupulously sold on ebay that is treated to get that color, but I believe the color is unstable. I know you said you inherited that from your grandmother, and there are very very rare dark blue beryl aquas. Here''s an example, but from the fuzziness in your photo, it''s hard to tell. Yours is more like a tanzanite blue.

http://www.paraibainternational.com/product_info.php?product=2510

 

[neatfreak]

I was also thinking it was possibly a treated beryl...can you take the stone to a reputable appraiser to have it checked out for treatments?

 

[anjiofchaos]

in both certificates from the labs they c learly verified that the gem was not treated, nither by heat, or by color enhancment or by led-bearing glass or any sort of color enhancment.
and the gem was also been exposed and tested by light types,and the color did not fade or irradiate. and i was guarenteed that this gem is not a maxixe beryl either...

but the confusion why are they labelling it as blue beryl?

 

[neatfreak]

Date: 12/25/2008 3:36:31 PM
Author: anjiofchaos
in both certificates from the labs they c learly verified that the gem was not treated, nither by heat, or by color enhancment or by led-bearing glass or any sort of color enhancment.

and the gem was also been exposed and tested by light types,and the color did not fade or irradiate. and i was guarenteed that this gem is not a maxixe beryl either...


but the confusion why are they labelling it as blue beryl?

I'm not familiar with those labs...but labs can be run by anyone, and there are MANY labs out there who don't know what they are doing, especially when it comes to the realm of colored stones. How did you find these labs? And are they well known for being reputable for IDing beryls?

 

[LD]

I have not heard of either lab but there are differences between Aqua and Maxixe - I found this for you:

Dichroism:
Aquamarine: deeper color belongs to the extraordinary ray
Maxixe: deeper color is found belonging to the ordinary ray, while the extraordinary ray is almost colorless
Spectrum:
Maxixe: Strong absorption in the red end of the spectrum (695, 655nm, with weaker bands showing at 628, 615, 581, & 550nm.) (somewhat like zircon!)
Habit and chemistry:
The original maxixe stones exhibited little crystal form, and had high contents of caesium & boron.
Specific gravity:
Maxixe: 2.80
Aquamarine:2.65-2.76
Refractive Index:
Maxixe: 1.5844-1.5920
Aquamarine: 1.564-1.587 (extraordinary ray)
1.579-1.593 (ordinary ray)

As they have different SG''s and different RI''s it should be reasonably easy to say if it is either.

 

[LD]

Thought you might also like to see this as some Maxixe fades dramatically and as said before is unstable:

 

[anjiofchaos]

the Emil Lab. is a certified lab in Japan , and is well renowned, i have used there expertise before to identify other type of beryl''s i haved used there services before to make a distinguish between a green beryl and an emerald, and to identify a few yellow beryl''s.

but they didnt give an exact result on this particillar gem..

the Tokyo Gem lab, is another japanese certifcation lab,but the i used their services this time at the branch in thailand, and the gave me the result of blue beryl without labeling it as a aquamarine, and i have also used their services before to identify a few tanzanites and a pair of change color garnet and a paraiba tourmaline. and they are certified and cerdited for by the tai goverment and and some american university, unfortounatly i cant remember its name..

but both labs gave me a dissapointing result for this gem.. however both labs gave an origin of Brazil Santa Maria.

lol this gem is taking alot of my energy
if any of you guys know a good lab or something of sort to help me with this..

 

[LD]

Date: 12/25/2008 5:52:14 PM
Author: anjiofchaos
the Emil Lab. is a certified lab in Japan , and is well renowned, i have used there expertise before to identify other type of beryl''s i haved used there services before to make a distinguish between a green beryl and an emerald, and to identify a few yellow beryl''s.

but they didnt give an exact result on this particillar gem..

the Tokyo Gem lab, is another japanese certifcation lab,but the i used their services this time at the branch in thailand, and the gave me the result of blue beryl without labeling it as a aquamarine, and i have also used their services before to identify a few tanzanites and a pair of change color garnet and a paraiba tourmaline. and they are certified and cerdited for by the tai goverment and and some american university, unfortounatly i cant remember its name..

but both labs gave me a dissapointing result for this gem.. however both labs gave an origin of Brazil Santa Maria.

lol this gem is taking alot of my energy
if any of you guys know a good lab or something of sort to help me with this..

I think you''ve got your answer ........... Brazilian Santa Maria Aquamarine