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Light sensitivity of pink fluorapatite
  
  Index -> Conserving, Preparing and Cleaning Minerals
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Tobi




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PostPosted: Oct 27, 2015 06:05    Post subject: Light sensitivity of pink fluorapatite  

Chris wrote me this via PM:
Chris wrote:
I saw you had a pink apatite. Be careful with it as it seems to be light sensitive. A cousin of mine has a great one which is kept in the dark. Don't know if yours is light sensitive as well.

He refers to this pink fluorapatite from Pakistan. Any experiences of such specimens losing their colour?

Thanks
Tobi



PakiAPAT.JPG
 Mineral: Fluorapatite
 Locality:
Nagar, Hunza Valley, Gilgit District, Gilgit-Baltistan (Northern Areas), Pakistan
 Dimensions: Specimen size 7,5 cm
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Josele




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PostPosted: Oct 27, 2015 08:23    Post subject: Re: Light sensitivity of pink fluorapatite  

Tobi, I got some pink apatite specimens from the Nagar area many years ago and I have not noted any decrease in color.
I must say that I keep my samples in a drawer outside of direct sunlight.
Cheers.

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Tobi




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PostPosted: Oct 27, 2015 08:32    Post subject: Re: Light sensitivity of pink fluorapatite  

Josele wrote:
Tobi, I got some pink apatite specimens of Nagar area from many years ago and I did not noted any decrease in color. I must say that I keep my samples in a drawer outside of direct sunlight. Cheers.
Thanks Josele, but I rather asked for specimens kept in displays and facing light - not for drawer specimens that are kept in the dark ;-)
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prcantos
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PostPosted: Nov 04, 2015 06:41    Post subject: Re: Light sensitivity of pink fluorapatite  

Hi, Tobi.

I have my specimens on some shelves on the wall at the living room because I like enjoying them daily. Of course they are preserved from direct sunlight or intense light exposures.

Among them I have a pink apatite from Pakistan Northern areas, but I haven't noticed any colour changes during several years.

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