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Identity Helpgarnet

19th Nov 2012 14:23 UTCSalvatore Natalizia

This garnet (I think grossular) come from Russia,the dealer not know exact origin,anyone know exact origin?

Cristal 5 cm

24th Nov 2012 21:27 UTCDermot Walsh

i think this may be a garnet,,from parts unknown

regards

dermot

24th Nov 2012 21:36 UTCRock Currier Expert

Dermot,

It does not look like any garnet I have ever seen.

24th Nov 2012 23:28 UTCBarry Miller

Salvatore - that's a nice looking specimen but it doesn't look like a garnet to me.

24th Nov 2012 23:45 UTCCraig Mercer

Hi Salvatore, I have some very similar specimen from Norway. I will do some digging around and see if I can find them in amoungst the mess that is my storage container ;-)

25th Nov 2012 23:05 UTCKen Doxsee

Salvatore -- I'm thinking analcime. --Ken

26th Nov 2012 22:03 UTCDermot Walsh

Rock Currier Wrote:

-------------------------------------------------------

> Dermot,

> It does not look like any garnet I have ever seen.

thanks Rock..i was afraid someone would say...that...it is another piece tumbled no end...with garnet and the like...and was nearest garnet for colouring..seems to scratch quartz quite easlly..though..anyway for me another poser..as i cant tell if it is in crystal form or not...

regards

dermot

30th Nov 2012 11:48 UTCSalvatore Natalizia

The mineral is garnet

30th Nov 2012 11:56 UTCCraig Mercer

It is definitely Garnet my friend, and it is most likely from Norway. My specimens had no other details then Norwegian, but they were very similar.

30th Nov 2012 15:32 UTCSpencer Ivan Mather

I have a similar garnet (grossular) from Russia, but as my collection is at the moment in storage due to refurbishment of my house then I cannot remember where in Russia it is from, but I can let you know in about a months time, but I do know it is from eastern Siberia, Russia.

Spencer

30th Nov 2012 20:16 UTCSalvatore Natalizia

Thanks

11th Dec 2012 18:08 UTCMartin Orságh

I think it can be quartz

12th Dec 2012 22:24 UTCSalvatore Natalizia

Martin,is GARNET

12th Dec 2012 23:43 UTCDermot Walsh

Hi Rock..if you get chance to read this..would you have a suggestion asto what it maybe .?.it`s been in a tumbler.. and seems naturally cleaved.and appears tobe a crystal .weighs 6gm...i have some equally bad close up photos..that tend to exhibit inclusions/or conglomerate.. has shimmering around the edges at times...its near enough in colour too resemble the garnet it was tumbled with..and appears to scratch quartz....

sorry for the lack of quality photos.. appreciate all opinion...

thank you

dermot

13th Dec 2012 01:48 UTCRock Currier Expert

Dermot,

It doesn't ring any bells with me and to be honest there is not a whole lot that anyone can tell from the photo. But your specimen does appear to be a bit translucent. It doesn't look like it might have enough value to spend much time trying to find out what it might be. If I had the specimen in hand and really wanted to know what it was I would first look at it carefully under a reflected light binocular microscope to see if I could see any indications of what it might be, like to see if I could discern any cleavage or associated minerals. I would check the hardness and streak. I might try and get a specific gravity if the material seemed compact and uniform enough to yield good data. I might try and polish a surface on it and see if I could get an RI by using my contact refeactometer. If it had any degree of transparency I might chip off of it and see if I could use my polariscope to determine if it were isotropic or anisotropic. I will hopefully soon have a good petrographic microscope that will further augment my rudimentary analytical capabilities. Failing all of that, if I just had to know I would send it to one of my friends like Bart Cannon or John Attard for probe work or an xray. They charge less than $100. Failing that I might call in some of the big guns that have a few million dollars of analytical equipment and can do all sorts of advanced analytical work up and including the characterization of a new minerals. I really don't like to bother any of my friends to work on something unless I am convinced that it is really necessary and that is not very often. This will illustrate some of the options open to you. You have done the obvious and low cost in money and effort thing, buy asking others if they can identify it by picture. Perhaps you may get lucky and someone will say "Oh yes, those come from my mine and they are xxxxx." However I suspect that if I had the piece I would just put it in the barrel of miscellaneous stuff that we save for society grab bags and forget about it. The world is full of unidentified minerals and rocks, and I don't have to know what they all are.

13th Dec 2012 02:55 UTCDermot Walsh

hi Rock..with your permission could you loan me the million @ a modest rate of return..(lol)....the attached is my best photo under mag(?)..of the obverse side thought you might like the 2nd of point under mag(?)...it does not leave any visable streak...and seems 2x the heft of quartz according to scale..i`m working on better photos

thanks kindly for your reply

best regards

dermot

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