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GeneralPending approval

10th Aug 2017 04:25 UTCCindy Hasler

Hello

Just wondering how long does it take to get a picture approved

10th Aug 2017 08:01 UTCDon Windeler

Cindy:

I am a regular, non-manager user. My experience is that the vast majority of my photos have been approved between crazy quick (a few hours) out to a week, with the norm being a day or two. As I understand it, different managers have varying geographic remits, so you can periodically get a longer delay if the main approver for your region is off duty away from MinDat for a bit. Sometimes things may also take longer if you have something potentially controversial or of uncertain ID.

And one should always expect a delay after major shows like Tucson, as everyone and their brother is heaving photos of their new favorite children into an approval traffic jam.

All of this is done by volunteers, so I try stay mellow when I upload something -- though I'll confess to to checking my "newest photos" way more than I should once I've crammed it all into the system! (And a big thanks to all those taking care of the approval process.)

Cheers,

D.

10th Aug 2017 08:08 UTCKeith Compton 🌟 Manager

Hi Cindy

I note that someone (not me) has questioned the identity of your three prasiolite photos, hence the delay.

Certainly from my perspective they just look like quartz.

Cheers

Keith

10th Aug 2017 11:10 UTCPaul De Bondt Manager

Cindy, your specimens are not prasiolite.

This is prasiolite : https://www.mindat.org/gallery.php?min=40112 and is way from what you have uploaded.

Please change the " prasiolite " in quartz and they will get through.

Cheers.

Paul.

10th Aug 2017 11:32 UTCCindy Hasler

Good morning, I read the description of prasiolite and it said green Quartz. Isn't this green?

Thanks

10th Aug 2017 12:00 UTCWayne Corwin

why is the photo labled amethyst_6310.jpg ?

that may cause confusion, if it's supposed to be prasiolite.

10th Aug 2017 12:06 UTCCindy Hasler

Hi

Just a file name

The specimens are from a amethyst deposit

10th Aug 2017 12:07 UTCJolyon Ralph Founder

I personally don't see any problem with this being labelled 'prasiolite'. As Cindy states this is green (nice association with the amethystine colours too).

Yes, it's quartz. But if we're going to allow varietal names such as 'amethyst', 'smoky quartz' etc on mindat then I see no reason to prevent this being called 'prasiolite'.

If this isn't prasiolite then we need a much clearer definition of what prasiolite is on the prasiolite page.

10th Aug 2017 12:10 UTCJolyon Ralph Founder

Note that this one https://www.mindat.org/photo-836353.html can't be described as 'prasiolite', but the other two photos can.

10th Aug 2017 12:48 UTCPeter Nancarrow 🌟 Expert

It isn't clear in the photo above [https://www.mindat.org/forum.php?addon,6,module=embed_images,file_id=71551] whether the specimen is really green coloured quartz (i.e. can therfore be called 'prasiolite'), or is simply quartz which appears coloured in part due to having green inclusions or some green mineral showing through from behind it. If it is the latter it should not be termed prasiolite.

Pete N.

10th Aug 2017 12:49 UTCPaul De Bondt Manager

Dangerous statement Jolyon.

What if somebody call a chlorite or hedenbergite included quartz, prasiolite ?

10th Aug 2017 12:58 UTCJolyon Ralph Founder

As I said before

> If this isn't prasiolite then we need a much clearer definition of what prasiolite is on the prasiolite page.

And this is associated with amethyst, which gives some good confidence that it is a true 'prasiolite' and not included with chlorite or whatever

10th Aug 2017 13:00 UTCKeith Compton 🌟 Manager

Hi

I note that in the Canadian Mineralogist (46, 111-124) "An Investigation of Greenish Quartz found at the Thunder Bay Amethyst Mine Panorama, Thunder Bay, Ontario, Canada, and Similar Localities" by Laura B, HEBERT and George R. ROSSMAN that they discuss the occurrence of greenish Quartz. They don't call it Prasiolite.

However, given that Prasiolite is a term for green quartz, I guess the two specimens qualify.

I note also that according to the geology.com website Prasiolite is heat treated Amethyst.

"A small number of amethyst deposits contain material that turns a yellowish green to green color at about 500 degrees Celsius."

I'm forever learning !!

Cheers

Keith

10th Aug 2017 13:16 UTCCindy Hasler

Hi

Here is another photo of the one that is not approved. Looks green but with a coating

10th Aug 2017 13:39 UTCAlfredo Petrov Manager

The classic "Prasiolite" from the Kaczawskie mountains, Poland, is more of a "greenish brown" than a "green".

10th Aug 2017 13:41 UTCJolyon Ralph Founder

That's indeed true. But what is the coloring agent in that, and how does that compare to this green quartz? I believe it's the same, ie Fe2+ from the sequence Fe2+ = prasiolite, Fe3+ = citrine, Fe4+ = amethyst

very very simplified of course.

10th Aug 2017 13:50 UTCUwe Kolitsch Manager

"Looks green but with a coating"

Green??

10th Aug 2017 13:54 UTCJolyon Ralph Founder

Yes, if it is green then the photos don't do it justice, and would therefore be miseading to post the photo as an example of prasiolite here, which is why it will not get approved under that name.

The other two were much clearer

10th Aug 2017 13:58 UTCDavid Von Bargen Manager

If you read the two articles (by Nassau and Lameiras) , it appears that the green color is caused by unpaired free electrons and not Fe (although the Fe has an effect on creating the free electrons).

https://www.mindat.org/min-40112.html

Nassau seems to think that green quartz (at least from Brazil) is distinct from the "greened" amethyst.

10th Aug 2017 18:33 UTCCindy Hasler

Hello

Just wondering why the 2 specimens that were approved as prasiolite have been removed from the prasiolite page

12th Aug 2017 09:56 UTCAmir C. Akhavan Expert

Removal reverted. One photo now featured on prasiolite page.

12th Aug 2017 22:59 UTCCindy Hasler

Thank you

12th Aug 2017 23:18 UTCCindy Hasler

Crown jewel mine

Thunder Bay, Ontario

13th Aug 2017 00:32 UTCJohn R. Montgomery 🌟 Expert

Wow Cindy... that's cool and sure looks green!

Regards to Bram

13th Aug 2017 01:15 UTCCostas Constantinides

Have dug for quartz in the N.T. Australia .The surface material was a light sea green.A little deeper it was dual coloured ie green and purple..Deeper still it was the amethyst colour. Where does this fit into the Fe2/Fe3 scheme. It seems in this case the sun/heat exposure had an effect on the colour. The green colour is the same as most of the material photographed and called prasiolite in this discussion.?????

14th Aug 2017 03:15 UTCRalph S Bottrill 🌟 Manager

Hi Costas

I have seen a similar effect in amethyst from near Broken Hill, but a thin section suggested the green colour of bleached material may be due to numerous extremely fine inclusions of micaceous minerals.

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