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Anatase or something else?
  
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Scott LaBorde




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PostPosted: Oct 28, 2013 08:02    Post subject: Anatase or something else?  

Ever since these crystals were discovered there has been a debate as to whether this is anatase or not (among my local group of friends). Particularly because of its unusual color. I know that anatase occurs in yellow, but this color almost looks like monazite. I do not see a dipyramidal occurence of monazite on mindat so I believe it's anatase. Is there any possibility of this being something other than anatase?


amelia_tase1.jpeg
 Description:
Anatase?
Raleigh, NC, USA
~ 1mm crystal size
 Viewed:  8121 Time(s)

amelia_tase1.jpeg



tase_magnified.jpeg
 Description:
anatase?
Raleigh, NC, USA
~ 1 mm crystal size
 Viewed:  8107 Time(s)

tase_magnified.jpeg



amelia_tase_zoomed.jpeg
 Description:
anatase?
Raleigh, NC, USA
~ 1mm crystal size
 Viewed:  8085 Time(s)

amelia_tase_zoomed.jpeg



tazx.jpeg
 Description:
anatase?
Raleigh, NC, USA
~ 1mm crystal size
 Viewed:  8096 Time(s)

tazx.jpeg



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Pete Richards
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PostPosted: Oct 28, 2013 08:50    Post subject: Re: Anatase or something else?  

Hi Scott!

They certainly look like anatase to me. The color is no problem and the habit is perfect. There are some smaller more orange crystals visible in some images that I am not sure about, but the straw-colored ones are anatase. Pretty little things!

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Jordi Fabre
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PostPosted: Oct 28, 2013 09:01    Post subject: Re: Anatase or something else?  

Please see: Images from Ploum of French Anatases (Col de la Madeleine)
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PostPosted: Oct 28, 2013 09:15    Post subject: Re: Anatase or something else?  

Hi
I agree with Pete. The loss of color is probably due to a very small proportion of iron in the crystal lattice. The pure anatase should be colorless
Roger.
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Scott LaBorde




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PostPosted: Oct 29, 2013 07:16    Post subject: Re: Anatase or something else?  

Thanks for your help guys. The identification was made difficult as a result of no "visible" anatase specimens ever reported from Wake County, NC. So we have something that is very rare for this location.
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Herman van Dennebroek




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PostPosted: Oct 29, 2013 08:00    Post subject: Re: Anatase or something else?  

Hi Scott,

Use Google search and fill in anatase pictures and you get a lot of anatase pictures in very different color's.

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