Help|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral Shows & EventsThe Mindat DirectoryHow to Link to MindatDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

gemstone help

Posted by Anonymous User  
Anonymous User June 30, 2012 03:25AM
Hello guys
i was wondering if i could get some help
ok, so heres my problem
last week i went to a rock and mineral show and bought this. It was marked off as blue tourmaline from pakistan, but im quite suspicious about it, personally i believe it is an aquamarine...what are your thoughts about it
any help would be appreciated
open | download - photo (1).JPG (753.2 KB)
open | download - photo (3).JPG (466.8 KB)
Wayne Corwin June 30, 2012 05:19AM
It does look like aquamarine, but could you do a couple photo's of the ends to show the shape please?
WOLFGANG NOACK June 30, 2012 07:23AM
looks like a section of aquamarine crystal markings and inclusions are clearly visible so i would say definitely aquamarine
Donald Peck June 30, 2012 04:43PM
I think it is tourmaline. Look at the ends of the crystal in the first photo. They apparently have a triangular cross section.
Owen Lewis (2) June 30, 2012 05:11PM
From the pics above, it could be one of several things and requires testing with standard tools to sort out which. Crystal form alone won't settle it even were if hexagonal in cross section (I'll guess it's not). Blue Tourmaline is not likely runner in any event.
José Zendrera June 30, 2012 09:09PM
I also think it is tourmaline. Pakistani aquamarine usually have well defined prism faces, even ones medium / low quality.
But I think the origin could be wrong, to me, it looks as Paprok or Lagham (Afghanistan) "paraiba" tourmaline.


Edited 1 time(s). Last edit at 06/30/2012 10:50PM by Jose Zendrera.
Stephanie Martin June 30, 2012 09:42PM
Another vote for tourmaline, based on the minimal info provided. I agree with Donald's and Hose's observations. A photo of the end as Wayne suggested showing the cross section would be helpful.

stephanie :))
Anonymous User July 01, 2012 05:18AM
these are the 2 end bits of the crystal
thank you guys so much for all your help
open | download - photo (1) copy 3.JPG (449.3 KB)
open | download - photo (2) copy.JPG (272.8 KB)
Wayne Corwin July 01, 2012 03:28PM

The end views definitaly shows it's beryl ;-)

Donald Peck July 01, 2012 05:07PM
I agree, the end-on views definitely support its being beryl.
Stephanie Martin July 01, 2012 05:55PM
Thank you for the new photos, and yes, this shows to be beryl - aquamarine.

stephanie :-)
Owen Lewis (2) July 01, 2012 11:52PM
Are we sure? It's an elongated hexagonal prism and there's some blue colouration. Aquamarine might be likely but, given the indistinct terminations and without testing there are other possibilities. Apatite? Check those ends again... indistinct cleavage? Even Tourmaline can show a hexagonal cross-section sometimes and an indistinct A/B axis cleavage. Testing of hardness, transmitted light spectrum and SG might support a definite opinion. Just my bit of 'quantitative easing'....
Sorry, only registered users may post in this forum.

Click here to login

Mineral and/or Locality is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © and the Hudson Institute of Mineralogy 1993-2017, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: October 19, 2017 08:25:59
Go to top of page