CIBJO releases Gemmological Special Report: considers process of separating measurable facts from opinion; See Gemological Articles below.
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 Post subject: What am I?
PostPosted: Sun Nov 27, 2011 9:31 pm 
Not easy this one (I hope).

A clue a day until someone gets it.

Clue 1. Don't focus on the colouration.

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 Post subject: Re: What am I?
PostPosted: Sun Nov 27, 2011 9:52 pm 
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Epidote?

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Web designer during business hours; gemstone-obsessed 24/7/365.


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 Post subject: Re: What am I?
PostPosted: Sun Nov 27, 2011 10:08 pm 
A fair shot..... but no.

For playing, I'll give you an extra clue before going to bed.

Clue 2. I'm not often faceted but occasional examples turn up. Some call me a 'collector's stone'.


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 Post subject: Re: What am I?
PostPosted: Sun Nov 27, 2011 10:10 pm 
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I'm guessing kyanite as a possibility.

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 Post subject: Re: What am I?
PostPosted: Sun Nov 27, 2011 10:17 pm 
Sorry Rick, Danielle was warmer.

But for playing, here's another clue - then I really am closing down for a few hours.

Clue 3. As you can see, I'm quite petite. The biggest like me found has been reported as 6cm long.


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 Post subject: Re: What am I?
PostPosted: Sun Nov 27, 2011 11:43 pm 
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Cassiterite?

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 Post subject: Re: What am I?
PostPosted: Mon Nov 28, 2011 6:52 am 
You're getting colder... :(

A new clue for every try then. Here's a solid piece of help:

Clue 4. My compound is tri-morphous.


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 Post subject: Re: What am I?
PostPosted: Mon Nov 28, 2011 7:03 am 
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Hmm. Maybe a Zoisite?

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 Post subject: Re: What am I?
PostPosted: Mon Nov 28, 2011 7:35 am 
Noo... look again at that end-on view.

Clue 5. Trimorphs... Cinderella and the Ugly Sisters. I can tell you that I'm not Cinderella!


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 Post subject: Re: What am I?
PostPosted: Mon Nov 28, 2011 7:56 am 
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sillimanite???


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 Post subject: Re: What am I?
PostPosted: Mon Nov 28, 2011 9:54 am 
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Location: Belgium
brookite ?

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http://www.gemsdat.be/engels.htm


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 Post subject: Re: What am I?
PostPosted: Mon Nov 28, 2011 9:57 am 
Nope. The end-on view is fairly diagnostic for the crystal system.

Clue 6. Though I'm considered fairly rare, I'm widely distributed. Amongst other places, you can find me in the Eiffel Mountains, somewhere in Italy and in Myanmar.


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 Post subject: Re: What am I?
PostPosted: Mon Nov 28, 2011 10:04 am 
marcm wrote:
brookite ?

See above.

Clue 7. My hardness is <7. Not so for one of my sister morphs.


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 Post subject: Re: What am I?
PostPosted: Mon Nov 28, 2011 10:33 am 
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baddeleyite ?

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 Post subject: Re: What am I?
PostPosted: Mon Nov 28, 2011 11:03 am 
marcm wrote:
baddeleyite ?

Good man! Have a cigar!

Listed in GEMSDAT (as you will know) but not in Gemology Tools Pro. This may have thrown some people.


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