GemologyOnline.com
https://www.gemologyonline.com/Forum/phpBB2/

who am I? (difficult one)
https://www.gemologyonline.com/Forum/phpBB2/viewtopic.php?f=19&t=9203
Page 1 of 2

Author:  cascaillou [ Sat Aug 29, 2009 5:01 pm ]
Post subject:  who am I? (difficult one)

Image

I'm a major source for rare earth element, and cascaillou thinks I'm beautiful

Author:  Barbara O. Ellis [ Sat Aug 29, 2009 5:07 pm ]
Post subject: 

Euxenite?

Author:  squeaky [ Sat Aug 29, 2009 5:47 pm ]
Post subject: 

Monazite....?

Author:  cnl [ Sat Aug 29, 2009 5:55 pm ]
Post subject: 

Well I would say Apatite?

Author:  HME [ Sat Aug 29, 2009 6:03 pm ]
Post subject: 

Bastnaesite

Author:  squeaky [ Sat Aug 29, 2009 6:18 pm ]
Post subject: 

I agree, more likely Bastnaesite...

Author:  dragonstek [ Sat Aug 29, 2009 7:17 pm ]
Post subject: 

Hi

I think maybe MoDo is right ,Euxenite

Euxenite , is made up of : yittrium , calcium , erbium , lanthanum , cerium , uranium , thorium , niobium , chloride .

while Bastnaesite : cerium , lanthanum , yittrium , carbonat , flouride .

Author:  squeaky [ Sat Aug 29, 2009 7:34 pm ]
Post subject: 

But Euxenite is normally flattened crystals and is brown/black rather than the orange/red I see in this stone isn't it?

I guess we don't know what size that stone IS do we???? :roll:

I'll stay with Bastnaesite.

Author:  gem-n00b [ Sat Aug 29, 2009 7:46 pm ]
Post subject: 

I'm going to guess Xenotime, not because I think it is, but because no one else will. :)

Author:  squeaky [ Sat Aug 29, 2009 7:58 pm ]
Post subject: 

Karim, you're so naughty.....!!!

Author:  gem-n00b [ Sat Aug 29, 2009 8:03 pm ]
Post subject: 

Hey, it contains yttrium as well as dysprosium, erbium, terbium, and ytterbium. Plus, it can be yellowish, brownish, reddish! :P Granted, I've never heard of a faceted example...

Author:  cascaillou [ Sat Aug 29, 2009 8:08 pm ]
Post subject: 

Well down HME, I thought that would be a difficult one...it is indeed bastnaesite (which is a major source of cerium)
This mineral can be confused with parisite and synchisite (two other orange rare earth carbonates), but these have a lower density.
I think bastnasite also exists in some 'grassy' green color which I like a lot too.

Author:  Barbara O. Ellis [ Sat Aug 29, 2009 8:49 pm ]
Post subject: 

Good on ya, Kevin!

Author:  HME [ Sun Aug 30, 2009 1:10 pm ]
Post subject: 

Thank you Princess MoDo.

In good gemologist form, I gathered my tools, carefully observed the facts, recorded details, and then decided that it just looked a lot like bastnaesite. :wink:

Author:  dragonstek [ Sun Aug 30, 2009 1:52 pm ]
Post subject: 

Hi

Well done kevin , good thing this was just a quiz of i would have flunked lol, but its fun :wink:

Page 1 of 2 All times are UTC - 4 hours
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/