December 14-16—SAN DIEGO, CALIFORNIA: Wholesale and retail show; Gem Faire Inc.; Scottish Rite Center, 1895 Camino del Rio S; Fri. 12-6, Sat. 10-6, Sun. 10-5
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 Post subject: Re: Is this a quartz?
PostPosted: Mon Apr 16, 2018 9:31 am 
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Sean Lines wrote:
Hi Sashaas, nice country. As stated it does not look like quartz. Don't let that put you off, it may be something interesting, it is already more interesting than quart.

Do you know what kind of stone was being extracted at the quarry, this may give some clues as well.

Your English is fine, certainly better than my Serbian.


Thanks for your replay...I was in Durban 1991 beautiful city and country..


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 Post subject: Re: Is this a quartz?
PostPosted: Mon Apr 16, 2018 9:34 am 
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Stephen Challener wrote:
sashaas wrote:
The mineral reacts to acid(fizzing). Could be CaCO3?

(Note this post Yes.... If you hold a flame above the fizzing calcite it will burn red.

I did that ,but no burn red...nothing


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 Post subject: Re: Is this a quartz?
PostPosted: Mon Apr 16, 2018 2:34 pm 
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Location: Pine City, NY and Dothan, AL
Might be a matter of technique. A brick red flame usually indicates calcium or cadmium. Of course, for a proper flame test, you'd dip a platinum wire in the "fizz", then hold it in the flame. I monitored the qualitative analysis lab in school, and haven't forgotten quite all of it :)


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 Post subject: Re: Is this a quartz?
PostPosted: Mon Apr 30, 2018 11:32 am 
I have a similar stone nearly. Then I checked the RF value, it is about 1.56---------Some people guessed it as white Beryl


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 Post subject: Re: Is this a quartz?
PostPosted: Tue May 01, 2018 10:15 am 
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Guru3 wrote:
I have a similar stone nearly. Then I checked the RF value, it is about 1.56---------Some people guessed it as white Beryl

What is ,,RF,, value....White Beryl reacting with acid?


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 Post subject: Re: Is this a quartz?
PostPosted: Tue May 01, 2018 11:17 am 
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RF refers, in this case, to refractive index.
No, beryl does not react to acids.


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