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Kingman Black Matrix cabs

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Author Topic: Kingman Black Matrix cabs  (Read 453 times)
tetonartgallery
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« on: February 09, 2016, 02:44:10 pm »

I just got back from Tucson where I picked up some Stabilized Kingman Rough. 

I cabbed up the most interesting piece of rough - here are pics of some earring pairs and cabs I will wrap.

This piece has spiderweb characteristics with pyrite  and black matrix and also has some pure white inclusions.  Any idea what the black or white  host stone may be?
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Thanks for looking - Gerard
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finegemdesigns
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« Reply #1 on: February 10, 2016, 03:00:58 pm »

I have been working with similar stabilized Kingman for a few years now. In my experience you want to avoid rough that has large pockets of translucent epoxy. Cabs cut from this will have blue floating in the epoxy and it looks bad. Stabilized is good but some rough should be avoided IMO.

Here is a cab I cut last year as an example of nice stabilized that comes from a similar pocket.




Notice that the cream colored matrix is not translucent epoxy.
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tetonartgallery
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« Reply #2 on: February 11, 2016, 10:04:43 am »

Thanks for those pics and the comment.

It is amazing how big clear epoxy pockets can be in Colbaugh's stabilized material,  there is some of that going on in my cabs, but not extreme.

The black is pyrite and i believe chert, but the pure white is what I have not seen before.  The pics it looks like light reflection, but some areas are pure white, Quartz? 
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finegemdesigns
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« Reply #3 on: February 11, 2016, 03:59:47 pm »

I doubt it's quartz actually but maybe someone else here knows what the white matrix is composed of.
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hulagrub
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« Reply #4 on: February 15, 2016, 11:03:16 am »

Hard to find good solid turquoise anymore!
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finegemdesigns
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« Reply #5 on: February 15, 2016, 02:17:55 pm »

I really like good stabilized kingman. Here is a beauty I just bought on eBay:

http://www.ebay.com/itm/WRG-High-Quality-TURQUOISE-Rough-Kingman-Arizona-Mine-Stabilized-2-8-Ounce-/401067335819?_trksid=p2047675.l2557&ssPageName=STRK%3AMEBIDX%3AIT&nma=true&si=OQEuH4484uqXKa9MGgHY0sRbSik%253D&orig_cvip=true&rt=nc





Kingman Red Matrix turquoise.
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