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GeneralLargest Crystals of Any Type
26th Apr 2017 19:53 UTCScott Rider
http://www.minsocam.org/msa/collectors_corner/arc/large_crystals.htm
Here is another link to interesting giant crystals:
https://www.pinterest.com/pin/741053313654905050/
Just thought this would be interesting read as it claims that the largest crystal ever found was 18 meter beryl crystal from Malakialina, Malagasy Republic (aka Madagascar). But the article does have examples of many other minerals and the dimensions of the largest crystal found of that species... It does NOT mention pollucite, so sorry no info for that here... And strangely it doesn't have quartz...
Anyone know of the African location that had gigantic quartz crystals, ones so big they made up part of the mountain? I swear I read something about that eons ago....
26th Apr 2017 20:03 UTCScott Rider
26th Apr 2017 22:14 UTCTravis Hetsler
26th Apr 2017 22:44 UTCcascaillou
https://s-media-cache-ak0.pinimg.com/736x/5a/0c/93/5a0c9337f0ee8503958065748abdd7c1.jpg
http://cdn.tourismontheedge.com/wp-content/uploads/2011/03/article-1081072-02464596000005DC-280_636x9441.jpg
Btw, besides the french national museum of natural history (MNHM), are there any other museum displaying a collection of giant crystals?
http://files.offi.fr/lieu/2453/images/600/4fbd34935596a0099c5f3ff0ee0e35fa.jpg
26th Apr 2017 23:03 UTCcascaillou
http://www.gemfrance.com/wpblog/french/wp-content/uploads/sites/2/2016/09/DOJI-HANOI-Giant-sapphire.jpg
27th Apr 2017 01:12 UTCScott Rider
I love the Naica mine, boy I would love to visit the caves but the temperature is little warm for my taste.
27th Apr 2017 01:15 UTCAlfredo Petrov Manager
27th Apr 2017 01:43 UTCDonald B Peck Expert
27th Apr 2017 02:20 UTCWayne Corwin
https://www.mindat.org/photo-158144.html
27th Apr 2017 02:59 UTCcascaillou
I would love to visit the caves but the temperature is little warm for my taste
well I think these caves are now flooded anyway
27th Apr 2017 03:44 UTCKelly Nash 🌟 Expert
27th Apr 2017 11:14 UTCReiner Mielke Expert
If you search messages for "Giant Crystal" you will find many more threads dealing with specific minerals and or localities.
27th Apr 2017 12:42 UTCPaul Brandes 🌟 Manager
-------------------------------------------------------
> The book Namibia: Minerals & Localities, by Ludi
> von Bezing & others, has a photo (p. 352, copied
> below) of a hill in the Hakos Mountains, 50 meters
> high, that is supposedly a single, corroded,
> quartz crystal. The book says "it is regarded as
> the biggest known quartz crystal".
>
Are you sure this isn't the quartz crystal Alfredo has mentioned, Kelly?? ;-)
27th Apr 2017 12:50 UTCAlfredo Petrov Manager
27th Apr 2017 14:44 UTCEd Clopton 🌟 Expert
27th Apr 2017 16:31 UTCDonald B Peck Expert
27th Apr 2017 17:44 UTCSusan Robinson
Susan Robnson
27th Apr 2017 17:46 UTCSusan Robinson
Susan Robinson
27th Apr 2017 17:57 UTCScott Rider
27th Apr 2017 19:03 UTCSteven Kuitems Expert
I once asked John Kolic what was the largest known willemite from the Sterling Mine, and he told me that on the 700' level he found a six foot by three foot long crystal exposed in a stope wall but it was too large to extract and remove from the mine. But as described it was the largest known
Crystal of willemite in the world.
Steven
27th Apr 2017 20:01 UTCScott Rider
28th Apr 2017 01:52 UTCPaul Brandes 🌟 Manager
-------------------------------------------------------
> Not at all, Paul. The one I mentioned only weighed
> 18 tons and was from Uganda. The Namibian one, if
> it's real (which I doubt), would weigh thousands
> of tons.
Oh I know. I was trying to be funny, but apparently it was too early in the morning.
I guess I better not quit my day job, eh?? ;-)
28th Apr 2017 03:32 UTCDoug Schonewald
28th Apr 2017 04:12 UTCcascaillou
http://www.hostingpics.net/viewer.php?id=830421DSC00637.jpg
it's a slickenside (deceptively looking prismatic)
28th Apr 2017 04:55 UTCRalph S Bottrill 🌟 Manager
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2024, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: April 25, 2024 20:32:24