Donate now to keep alive!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
What is a mineral?The most common minerals on earthMineral PhotographyThe Elements and their MineralsGeological TimeMineral Evolution
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch 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 MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Pakistan Unknown

Posted by Steve Hardinger  
Steve Hardinger April 06, 2012 03:38AM
At first I labeled this as epidote/clinozoisite, but doubted it later, because the striations are perpendicular to the long axis of the crystal.

The crystals are brown, transparent, and glassy. Hardness > glass. The only locality info I have is Pakistan. The matrix is quartz, and there appears to be a small hematite crystal present as well.

Any ideas about identity?
open | download - 14981a.JPG (383.1 KB)
open | download - 14981b.JPG (373.3 KB)
open | download - 14981c.JPG (340 KB)
Steve Hardinger April 06, 2012 03:39AM
Another picture...
open | download - 14981d.JPG (237.8 KB)
Ralph Bottrill April 06, 2012 04:26AM
Possibly tantalite-Mn, but the form is quite unusual?

Steve Hardinger April 06, 2012 04:55AM
I thought about tantalite but the terminations and striations seem wrong.
Stephanie Martin April 06, 2012 05:06AM
I know the hardness doesn't fit and this is probably way off, but they remind me of xenotimes from Brazil?

Eligiusz Szełęg April 06, 2012 08:21AM
looks like cassiterite or similar tetragonal minerals (zircon, xenotime)
Uwe Kolitsch April 06, 2012 08:25AM
I'd agree with Stephanie.
Knut Eldjarn April 06, 2012 09:05AM
Vesuvianite ?
Peter Slootweg April 06, 2012 09:06AM
That's a very nice Mangano-Tantalite. You don't see them too often with this high luster. fine specimen.

Johan Kjellman April 06, 2012 11:25AM
yes box - tantalite!
Steve Hardinger April 06, 2012 01:45PM
Thanks for the suggestions. I'll do more tests, with these candidates in mind. In the end I'll probably submit it for XRD.
Ronald John Gyllenhammer April 06, 2012 03:05PM
Hi Steve,

Alot of good suggestions. I think it may be either Zircon or Xenotime. Have you checked for fluorescence or radioactivity, these tests may be diagnostic for this. BTW, it's a beautiful specimen, good luck with it.

Rudy Bolona April 06, 2012 03:28PM
The striations, terminations and crystal form look just like a couple of wodginite specimens I have. These striations are located on the A axis and 100 face of wodginite crystals.
Uwe Kolitsch April 06, 2012 06:06PM
How were these wodginite specimens analysed?
Steve Hardinger April 07, 2012 03:03AM
The specimen is not radioactive, and has no fluorescence under either SW or LW UV.
Harold (Hal) Prior April 07, 2012 04:52AM
looks like Zaqi Mountain, Northern areas Xenotime.
Steve Hardinger April 07, 2012 05:57AM
Hal, I don't think so. The color of my specimen is too dark (too brown; not yellowish).
Luiz Alberto Dias Menezes, Fo. April 07, 2012 10:08PM
Xenotime will show a perfect prismatic cleavage
Steve Hardinger April 12, 2012 06:48PM
Thanks to John Attard of Attard's Minerals ( for confirming that this is tantalite-(Mn).
José Zendrera April 12, 2012 08:30PM
Congratulations to Ralph, Peter and Johan!

Neal Luppescu April 12, 2012 11:21PM
Mn tantalite
Stephanie Martin April 13, 2012 02:17AM
That's more like mmm-tantalite :-D. Congrats to Steve, it is a nice one!

stephanie :-)
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 1993-2018, except where stated. relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: January 18, 2018 20:03:17
Go to top of page