http://www.mindat.org/forum.php Sun, 29 Nov 2009 21:32:58 +0000 Phorum 5.2.8-RC1 http://www.mindat.org/forum.php?read,15,161751,161895#msg-161895 http://www.mindat.org/forum.php?read,15,161751,161895#msg-161895 Karsten Eig Rockhounds Sun, 29 Nov 2009 21:09:04 +0000 http://www.mindat.org/forum.php?read,17,160281,161894#msg-161894 http://www.mindat.org/forum.php?read,17,160281,161894#msg-161894 -------------------------------------------------------
> Karsten Eig Wrote:
> --------------------------------------------------
> -----
> > Sigurd Stordal Wrote:
> >
> --------------------------------------------------
>
> > -----
> >
> > > rare: group of stetindite-Y xls.
> > What about that chemchuznikovite(?) you found
> at
> > the roadwork at Konnerud?
>
> Zussmanite, and yes it has to be up there on the
> top, the first to my knowledge find of zussmanite
> in a hydrothermal setting.

Hm - how did I mix up the mineral names? Perhaps just the scientist's love for long mineral names? And I'm not even a systematics colllector!]]> Karsten Eig Scrapbook Sun, 29 Nov 2009 21:05:50 +0000 http://www.mindat.org/forum.php?read,14,160851,161893#msg-161893 http://www.mindat.org/forum.php?read,14,160851,161893#msg-161893 any idea when the Archives will be back up?]]> Jim Ferraiolo IMA Status Sun, 29 Nov 2009 21:01:54 +0000 http://www.mindat.org/forum.php?read,6,161860,161892#msg-161892 http://www.mindat.org/forum.php?read,6,161860,161892#msg-161892 Karl Volkman General Sun, 29 Nov 2009 20:57:42 +0000 http://www.mindat.org/forum.php?read,66,137366,161891#msg-161891 http://www.mindat.org/forum.php?read,66,137366,161891#msg-161891
2) I'll try to write some additions for the article. Albite is not my primary intrest, but I have a (rather complete) "subcollection" of feldspars.

3) And talking of albite and oligoclase, is this entry about albite sensu stricto (Na between 100 and 90%) or about albite sensu largo (the half of the plagioclase series between 100 and 50% Na)? May be, there can come an entry about the plagioclases in general, where the occasional good finds of lesser known plagioclases are treated, like peristerite or the gemmy bytownite from Mexico? And beside that, this entry about albite ss and one about the other famous plagioclase labradorite?]]> Erik Vercammen Best Minerals A Sun, 29 Nov 2009 20:50:54 +0000 http://www.mindat.org/forum.php?read,5,161875,161890#msg-161890 http://www.mindat.org/forum.php?read,5,161875,161890#msg-161890 Steve Hardinger Collecting Sun, 29 Nov 2009 20:50:30 +0000 http://www.mindat.org/forum.php?read,17,160281,161888#msg-161888 http://www.mindat.org/forum.php?read,17,160281,161888#msg-161888 About twenty good specimens came out :-)

Fluorite on Calcite, Wellin, Belgium	© Harjo

Fluorite on Calcite, 6cm wide, Wellin, Belgium	© Harjo

]]> Harjo Neutkens Scrapbook Sun, 29 Nov 2009 20:26:33 +0000 http://www.mindat.org/forum.php?read,17,161817,161887#msg-161887 http://www.mindat.org/forum.php?read,17,161817,161887#msg-161887
The still unidentified one is arsenopyrite (or löllingite, which cannot be distinguished from arsenopyrite from a photo), I know arsenopyrite from the tin mines of Saxony very well. Looks exactly the same.

Regards,
Sebastian Möller]]> Sebastian Möller Scrapbook Sun, 29 Nov 2009 20:25:32 +0000 http://www.mindat.org/forum.php?read,11,161671,161886#msg-161886 http://www.mindat.org/forum.php?read,11,161671,161886#msg-161886
Yes - I was starting to think ilmenite ... Does it occur in this type of matrix?

Here is another photo. I may have gone too far in trying to capture the metallic luster (some highlights are blown) but maybe it makes the point. The "in person" luster actually has a bit more of a bluesh tinge - maybe my color balance isn't set quite right. I added a teeny bit of blue using Photoshop but I didn't want to go overboard.

Anyway - I'm happy that this isn't proving totally obvious. Makes me feel less of a dunce!

Modris]]> Modris Baum Identity Help Sun, 29 Nov 2009 20:17:10 +0000 http://www.mindat.org/forum.php?read,102,147458,161883#msg-161883 http://www.mindat.org/forum.php?read,102,147458,161883#msg-161883
Tom]]> Tomasz Praszkier Mindat Auctions Sun, 29 Nov 2009 20:06:10 +0000 http://www.mindat.org/forum.php?read,5,161875,161882#msg-161882 http://www.mindat.org/forum.php?read,5,161875,161882#msg-161882 Cameron Schiffer Collecting Sun, 29 Nov 2009 19:57:50 +0000 http://www.mindat.org/forum.php?read,55,161514,161881#msg-161881 http://www.mindat.org/forum.php?read,55,161514,161881#msg-161881 Jesse Fisher Fakes, Frauds and Marketing Ploys Sun, 29 Nov 2009 19:55:48 +0000 http://www.mindat.org/forum.php?read,5,161875,161880#msg-161880 http://www.mindat.org/forum.php?read,5,161875,161880#msg-161880 Steve Hardinger Collecting Sun, 29 Nov 2009 19:42:37 +0000 http://www.mindat.org/forum.php?read,11,161671,161879#msg-161879 http://www.mindat.org/forum.php?read,11,161671,161879#msg-161879
Maybe Knut will see the thread, I'm sure he knows the location well.

Also, another possiblity might be Ilmenite?

Ron]]> Ronald John Gyllenhammer Identity Help Sun, 29 Nov 2009 19:36:33 +0000 http://www.mindat.org/forum.php?read,60,161863,161878#msg-161878 http://www.mindat.org/forum.php?read,60,161863,161878#msg-161878 NH Micromounting Sun, 29 Nov 2009 18:59:11 +0000 http://www.mindat.org/forum.php?read,11,161671,161877#msg-161877 http://www.mindat.org/forum.php?read,11,161671,161877#msg-161877
Thanks for the additional suggestions.

I think the luster on my photo is misleading. It is actually "metallic" - much like some galena (but NOT silver bright). So I don't think it's almandine. And the stuff is really, really dark gray/black where broken. I know melanite can be really dark as well but it just doesn't look like a garnet to me. And supposedly almandine streak is white ...

The euxenite-(Y) is an intriguing possibility. I've always been attracted to unusual minerals. But you'd think I would remember something like that. Plus, judging by the photos on Mindat, this would be quite a specimen for that mineral.

I don't have much experience with rutile (other than micros) so I can't tell if the "in person" appearance is reasonable. Maybe I'll try another photo to see if I can get the luster to be more realistic.

Right now I'm still leaning towards hematite (despite the hardness test failure). A couple of Mindat photos from Dypingdal, Norway show a matrix (hydrotalcite, lizardite) which looks similar (but I don't think I have lizardite).

Thanks to all - at least I have some leads to follow up on.

Modris]]> Modris Baum Identity Help Sun, 29 Nov 2009 18:49:19 +0000 http://www.mindat.org/forum.php?read,59,161393,161876#msg-161876 http://www.mindat.org/forum.php?read,59,161393,161876#msg-161876
They tend to care less about where something is from, or whether it is a bit cloudy.

It seems like a rather large chunk (I wish I could have seen the whole crystal before it went down the river) and nice clarity (Not for faceted gems though.)

I would think at the least about 40 GBP to about 70 GBP.

Greetings.]]> Bri Dragonne Money Grubbers Sun, 29 Nov 2009 18:42:29 +0000 http://www.mindat.org/forum.php?read,5,161875,161875#msg-161875 http://www.mindat.org/forum.php?read,5,161875,161875#msg-161875 Cameron Schiffer Collecting Sun, 29 Nov 2009 18:25:52 +0000 http://www.mindat.org/forum.php?read,55,161514,161874#msg-161874 http://www.mindat.org/forum.php?read,55,161514,161874#msg-161874 Adam Kelly Fakes, Frauds and Marketing Ploys Sun, 29 Nov 2009 18:08:45 +0000 http://www.mindat.org/forum.php?read,6,161790,161873#msg-161873 http://www.mindat.org/forum.php?read,6,161790,161873#msg-161873 Alex Homenuke General Sun, 29 Nov 2009 18:07:59 +0000 http://www.mindat.org/forum.php?read,59,161393,161872#msg-161872 http://www.mindat.org/forum.php?read,59,161393,161872#msg-161872 Peter Lyckberg Money Grubbers Sun, 29 Nov 2009 18:03:29 +0000 http://www.mindat.org/forum.php?read,11,161672,161871#msg-161871 http://www.mindat.org/forum.php?read,11,161672,161871#msg-161871 Cameron Schiffer Identity Help Sun, 29 Nov 2009 17:53:47 +0000 http://www.mindat.org/forum.php?read,17,161817,161870#msg-161870 http://www.mindat.org/forum.php?read,17,161817,161870#msg-161870 Timothy Jackson Scrapbook Sun, 29 Nov 2009 17:47:03 +0000 http://www.mindat.org/forum.php?read,60,161863,161868#msg-161868 http://www.mindat.org/forum.php?read,60,161863,161868#msg-161868
Don S.]]> Don Saathoff Micromounting Sun, 29 Nov 2009 17:31:27 +0000 http://www.mindat.org/forum.php?read,11,161697,161867#msg-161867 http://www.mindat.org/forum.php?read,11,161697,161867#msg-161867 Marko Burkhardt Identity Help Sun, 29 Nov 2009 17:23:09 +0000 http://www.mindat.org/forum.php?read,17,161817,161866#msg-161866 http://www.mindat.org/forum.php?read,17,161817,161866#msg-161866 Timothy Jackson Scrapbook Sun, 29 Nov 2009 17:20:45 +0000 http://www.mindat.org/forum.php?read,17,161817,161865#msg-161865 http://www.mindat.org/forum.php?read,17,161817,161865#msg-161865 Timothy Jackson Scrapbook Sun, 29 Nov 2009 16:53:46 +0000 http://www.mindat.org/forum.php?read,17,161817,161864#msg-161864 http://www.mindat.org/forum.php?read,17,161817,161864#msg-161864 Jim Hall Scrapbook Sun, 29 Nov 2009 16:46:32 +0000 http://www.mindat.org/forum.php?read,60,161863,161863#msg-161863 http://www.mindat.org/forum.php?read,60,161863,161863#msg-161863 ROBERT A SANTEE Micromounting Sun, 29 Nov 2009 16:44:07 +0000 http://www.mindat.org/forum.php?read,15,161751,161861#msg-161861 http://www.mindat.org/forum.php?read,15,161751,161861#msg-161861
I know they drill straight down, around 1700m for the good steam. Then in the same hole they pull up cold water at a shallower level. The steam moves straight to the turbines. The cold water is filtered and then split in two streams, on stream moves right out as your cold water, the other is heated from the steam that passed through the turbines. Its to my knowledge that in some case they push the water back into the ground, but at the new plant they let it flow out to sea. Unfortunatly, for those tree huggers, that killed a large area of shore line, with water almost at boiling.

The steam is rather clean, to my knowledge. It is full of silicates, you can see this coating alot of old steam pipes. And in the capital of Reykjavik their water has a strong sulphur smell. In 1977 Iceland was the first country to successfuly create a volcanic eruption, when while drilling, they hit a magma pocket, and a few thousand pounds was released. They have better bits today.

[thinkgeoenergy.com]]]> Jamison K Turnbull Rockhounds Sun, 29 Nov 2009 16:41:48 +0000