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46  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Old Stock Chrysocolla, Mexican Turquoise, and Sodalite on: November 11, 2015, 03:38:07 pm
Ileney -- I starting working on a few more cabs today, and haven't had any problems with undercutting.  These are only sanded to 600 so far, but seem like they'll take a good polish. 

I have noticed that the brighter blue parts seem to polish quicker than the surrounding stone.  If you aren't feeling a difference in smoothness, it could just be that like the ones I am working, the more colored parts are polishing quicker and only make it look like there is some light undercutting.
47  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Old Stock Chrysocolla, Mexican Turquoise, and Sodalite on: November 10, 2015, 03:28:07 pm
I decided to go ahead and cut without stabilizing, and everything cut really well.  I started cabbing a couple of the end cuts just to get a feel for the materials, and so far I really like working with all of them.  I've only sanded to 600, and still need final sanding and polishing, but I thought I'd show what they look like so far.
48  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Old Stock Chrysocolla, Mexican Turquoise, and Sodalite on: November 06, 2015, 05:41:20 pm
Sodalite
49  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Old Stock Chrysocolla, Mexican Turquoise, and Sodalite on: November 06, 2015, 05:40:25 pm
Mexican Turquoise
50  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Old Stock Chrysocolla, Mexican Turquoise, and Sodalite on: November 06, 2015, 05:39:27 pm
Chrysocolla Rough
51  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Old Stock Chrysocolla, Mexican Turquoise, and Sodalite on: November 06, 2015, 05:38:11 pm
I was able to get ahold of some very old chrysocolla from Inspiration Mine in Arizona, Mexican turquoise, and sodalite rough.  I've yet to work with any of these stones and thought I'd show them on here for recommendations on how to cut them into cabs.

I've seen quite a lot of information saying that the chrysocolla and turquoise should be stabilized before working with them and wanted to ask everyone's opinion on what is the best procedure to do so, or should it be done.  Should they be slabbed before stabilizing, or stabilize before slabbing?  The three small slabs of chrysocolla are all about 1 1/2" x 2".  The three rough pieces are about 4 inches long, and 2-3 inches wide.  Also, can any one id the other minerals that are present in these stones (I know it's hard from a picture)?

The Mexican turquoise looks like it may have amethyst on the top of it as well.  Is that common?  It is about 2 1/2" x 2 1/2 inches and almost as thick.  What is the best way to cut it?

I haven't worked with sodalite yet either.  It is about 4" x 3" and a little over an inch thick.  Any recommendations on it?
52  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Took 5 years, but the jasper block is home on: September 17, 2015, 03:26:34 pm
Rocks like that one you got are the reason I'm wanting an 18" slab saw.  I've spent years dragging home as many rocks as I could and have just recently started cutting and working with what I've collected.

Those are great looking cabs from the sister stones.  I hope to see what you get to do out of the big piece.
53  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Mineral Specimens / Re: Need some help with indentification on: September 17, 2015, 03:11:55 pm
Thank you!  I did more searching online, and did find some orange celestite that looks real close to this.  Thanks for the help.
54  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Mineral Specimens / Need some help with indentification on: September 16, 2015, 04:08:11 pm
Does anyone have any idea what this may be?

It was labeled as "Celestite, possibly from San Rapheal, Utah", but I think that it was mislabeled and is something else.  The center does have some grayish-blue in it, so if it is Celestite, it is surrounded by something else.

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