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Dog tooth calcite from where?
  
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R Saunders




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PostPosted: Aug 14, 2018 06:08    Post subject: Dog tooth calcite from where?  

Hope this is allowed. Found at a tail gate swap. Dog tooth calcite with a blue mineral line. Location please? kind of a gray color to it.


P1000447.jpg
 Mineral: Calcite
 Description:
Locality?
15.3 mm high 12.3 mm front to back
 Viewed:  445 Time(s)

P1000447.jpg


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R Saunders




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PostPosted: Aug 14, 2018 06:11    Post subject: Re: dog tooth calcite  

Side view shows to hights


P1000448.jpg
 Mineral: Calcite
 Description:
Locality?
15.3 mm high 12.3 mm front to back
 Viewed:  441 Time(s)

P1000448.jpg


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franjungle
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PostPosted: Aug 14, 2018 06:37    Post subject: Re: dog tooth calcite  

Hi Saunders.

Please would it be possible that you use after read the link:

How to add multiple photos to a Post

Is too difficult to identify a calcite locality with a photograph, but our guidelines for these questions are here:

What is it? - Where is it from?

Regards.
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Josele




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PostPosted: Aug 14, 2018 06:39    Post subject: Re: dog tooth calcite  

Size is in mm or cm?
Some testing and a closeup in higher resolution of the blue stuff will help.
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Bob Harman




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PostPosted: Aug 14, 2018 07:10    Post subject: Re: dog tooth calcite  

Saunders calcite example shows a classic appearance for one of the calcite types common to the Harris Creek mining district of the Illinois Fluorite District. Which one of the 3 mines, now escapes me, but it might be the Minerva #1 mine.

If by the "blue mineral line" you mean the areas near the specimen edge, then they are areas of bluish purple fluorite as your specimen is near the fluorite orebody.

I am not sure I would call the calcites "dogtooth calcites", but would call them inter-grown, but that is just a matter of semantics so not of much importance. The crystals range in size up to about 2.5 cm.

I think Franjungle, as a site administrator, should become a bit more patient and let viewers with knowledge of the specimens give their opinions before jumping in.

Everyone interested in fluorite and its mining areas should read the Mineralogical Record article by Alan Goldstein in his 1997 article. It is quite comprehensive with lots of accompanying pix. Bob
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Jordi Fabre
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PostPosted: Aug 14, 2018 07:35    Post subject: Re: dog tooth calcite  

Bob Harman wrote:
..I think Franjungle, as a site administrator, should become a bit more patient and let viewers with knowledge of the specimens give their opinions before jumping in...

I totally disagree Bob. If the administrators don't participate and refresh the memory to the newers of the rules of FMF (rules that they recieve when they enroll FMF) then FMF will become a dump with no one respecting anything.

Saunders is a newer member, so it is not a big fault if he publishes several messages in another thread (in "The Illinois Fluorites with Calcite are chemically etched?" thread), repeat posts with the same content and don't follow our guidelines requesting supply different details to identify their "tail gate Show" specimens ( https://www.mineral-forum.com/message-board/viewtopic.php?p=63266#63266 ), but if nobody notifies him and the administrators don't clean up everything again and again, he and many others will continue doing the same again and again and this is not the kind of Forum we want.
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Bob Harman




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PostPosted: Aug 14, 2018 08:00    Post subject: Re: Dog tooth calcite from where?  

I respect your opinion, Jordi, but I was specifically referring to Franjungle's statement about identifying localities for calcites just from photos alone. Generally this may be true, but in some cases, like this one, the locality of the calcite specimen was distinct and obvious to me. Never-the-less it won't happen again. BOB
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Jordi Fabre
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PostPosted: Aug 14, 2018 08:14    Post subject: Re: Dog tooth calcite from where?  

You be right Bob, but the task of the administrators is quite hard and time to time we can publish a generic answer instead an specific one. Please forgive us if it happens, we have a lot of work and not enough time! ;-)
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R Saunders




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PostPosted: Aug 14, 2018 09:29    Post subject: Re: Dog tooth calcite from where?  

Thank you for the replies. On Tuesday I visited the A. E. Seaman Mineral MuseumM. Houghton, Michigan. Wednesday evening there was a group of area collectors and dealers doing a tail gate rock swap at the Quincy Mine parking lot. Hancock, Mi. This man had some Fluorite and the piece shown here for sale. So this too may have come from the Hardin County area of Illinois. He had no other information on the source. I wish I could have bought more of the Fluorite but my little car and camping gear don't mix. I did come home with lot's more of Datolites, many to be polished. My in law's have a camp near the Fluorite mines in Southern Illinois, so I have been given several nice pieces. Bob
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