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Identity HelpGarnierite location help

10th Sep 2020 20:25 UTCRolf Luetcke Expert

This is a garnierite specimen we purchased at the Arizona-Sonoran Desert Museum sale and on the label it said Washington State, USA. There are no photos of garnierite on mindat for the state and no help there.
If anyone has an idea where in Washington State this came from I would sure appreciate the help. Specimen is 6x3cm.

10th Sep 2020 20:50 UTCJeff Dunn

https://www.mindat.org/locentries.php?m=10936&p=14220

10th Sep 2020 22:43 UTCAlfredo Petrov Manager

Rolf, there is one photo from Washington state: https://www.mindat.org/photo-512095.html - if it really is "garnierite", plus several other Washington localities listed on Mindat. Perhaps some of our expert Washington collectors will chime in with better information.

If you had not specified Washington, I would've guessed France, or the Dominican Republic, but "garnierite" is fairly widespread, so hard to say.

10th Sep 2020 22:56 UTCRolf Luetcke Expert

Alfredo,

I had looked at that one for Washington State but it is not really a specimen photo, it is a photo of the material in situe and didn't really help much.

Yes, it had a label but only said the State, hope others who collect in Washington will see it and hopefully know.

11th Sep 2020 03:24 UTCSteve Ewens

Rolf,

Another possible location would be Riddle Oregon, although from the botryoidal form I would not think this is the location. The material I have collected there was never deposited in cavities judging from what I found. Rather it was in vein form within the host rock.

That said, the material I have collected on the dumps of "Hanna Nickle/ Glenbrook Nickle" is interesting. I believe Hanna Nickle was the only operating USA nickle mine with a smelter.

Sometimes but rarely , one can find some quartz/agate with enough nickle it looks like chrysoprase.

Steve

11th Sep 2020 13:48 UTCRolf Luetcke Expert

Steve,

I do have a piece from Riddle Oregon and it is all massive material and not the botryoidal as in the one I got. Thanks for your ideas.

11th Sep 2020 14:06 UTCRolf Luetcke Expert

The two labels that were with the Garnierite piece when we purchased it.

11th Sep 2020 14:07 UTCRolf Luetcke Expert

This hand written note was also with the piece. Gives a bit more information but not a location unfortunately.

It was a study collection so made me think that it was accurate with the species.

11th Sep 2020 14:45 UTCPaul De Bondt Manager

Rolf, It would probably help if you could post a pic of the matrix.

Keep safe.

11th Sep 2020 18:03 UTCRolf Luetcke Expert

Paul,

This is the back of the piece and the whitish at the far right are paper tack that wouldn't all come off. The painted number I had a hard time reading, maybe JSW and 87 something.

Thanks Paul

11th Sep 2020 22:22 UTCAlfredo Petrov Manager

Rolf, I think you're reading it upside down, and that it really says 428/MSC.

12th Sep 2020 14:01 UTCRolf Luetcke Expert

Alfredo,

Think you are right, never did give much attention to the number but now you mention it, you are right, must be a collection number.

12th Sep 2020 14:03 UTCRolf Luetcke Expert

That is the number on the darker of the two tags as well so the specimen definitely belongs to the tags that came with it, at least those were not separated during selling.

11th Sep 2020 18:05 UTCRolf Luetcke Expert

Here is the side of the specimen with the flattened material at upper right that didn't get to form in the botryoidal form, the side of the broken material is also visible at top.

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