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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 9:04 pm 
Barbra Voltaire wrote:
Zircon has a hardness greater than 7.

Feldspar?


Low Zircon (and if Zircon that is most surely *low*) :D


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 9:05 pm 
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Quote:
Is this mineral normally considered a gem?

Yes but maybe more like a collector gem. It's not a very rare mineral though and you most probably already heard about it.

Quote:
Is the hardness greater than 6?

Yes.

Quote:
Low Zircon

No.



Game rules:
Each player can ask two questions at a time, which I will answer yes or no.
Only one of the two questions can be what you think the stone is.
For instance, Question: is it amorphous AND is it opal? Answer: no and no.
Other example: Question: is it amorphous AND is it from autria? Answer: no and no.


Last edited by cascaillou on Wed Nov 17, 2010 9:25 pm, edited 1 time in total.

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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 9:23 pm 
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Is the RI between 1.60-1.69?
Does it have more than one plane of cleavage?


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 9:31 pm 
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Quote:
Is the RI between 1.60-1.69?

No. But you already asked that.

Quote:
Does it have more than one plane of cleavage?

Yes. Mostly one perfect cleavage in one direction (which is visible on my pic), but also another imperfect clivage in another direction. However, some books will only mention the perfect one.

PS: the bad quality of the specimen is making things difficult. But I have all the data for this specimen, so one can ask about anything.


Last edited by cascaillou on Wed Nov 17, 2010 9:38 pm, edited 1 time in total.

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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 9:37 pm 
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Oh, oops
Is the RI between 1.7 and 1.8?
Is the RI over the limit?


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 9:42 pm 
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Quote:
Is the RI over the limit?

No.

Quote:
Is the RI between 1.7 and 1.8?

Yes.

tip: there are several brown to green stones in this RI range


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 10:00 pm 
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Is the SG between 3.5-4.0?
Is the material pleochroic?


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 10:04 pm 
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Quote:
Is the SG between 3.5-4.0?

No. This specimen is somewhere between 3 and 3,5

Quote:
Is the material pleochroic?

Yes.


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 10:22 pm 
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Is the crystal system orthorhombic?


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 10:25 pm 
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Quote:
Is the crystal system orthorhombic?

No.


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 10:38 pm 
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Is the crystal system tetragonal?


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 10:42 pm 
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Quote:
Is the crystal system tetragonal?

No. It is a trichroic stone.

Unfortunately I must leave you now (sleep), but I'm back tomorrow.


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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 11:29 pm 
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Spodumene :?

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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 11:32 pm 
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Mali Grossularite garnet :? :?

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 Post subject: Re: The Ugly
PostPosted: Wed Nov 17, 2010 11:35 pm 
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WAKE UP!!! :lol:
A really really cruddy Axinite :? :? :?

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