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1  The Gathering / Our Place / Re: Updates on: April 25, 2016, 06:11:46 am
 yippie
2  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Plasma Agate on: April 11, 2016, 05:31:47 pm
These form in faults and are extremely variable. We have similar rough here in Washington . It starts as a listwanite  in a fault ( the listwanite has a series of precursor rocks as well) and it becomes more silicified with each additional  soaking in hydrothermal solutions. Listwanites are brittle and fracture easily making easy paths for metal bearing hydrothermal fluids but  it is usually well healed when found in the field. The scientists call the green quartz a fibrous calcedony like chrysoprase. Rarely it gets to a point that it turns red. We find lots of boulders in the streams that follow the faults but we also have it in cliffs that defy rock tools. I could see people using dynamite on it in frustration but with it's inherent brittleness not a good idea.There are probably geological reports for the area giving the average metal content. One mountain of it up here is about 1% mercury.
3  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Any clue as to what this is? Coprolite? Youngite? on: April 11, 2016, 05:21:28 pm
That looks a bit off for youngite. A California geode possibly.
4  Creative Stone Works / Moderator, Michael Hoover / Beadmaking, Drilling, and Beading / Tutorials / Re: Imperial Jasper pendant on: April 11, 2016, 12:53:57 pm
Very striking! I have been doing polychrome pendants lately and they also demand big because of the pattern . Lots of work on the big ones but certain people really like the size and statement.
5  The Gathering / Our Place / Re: anybody know what this is on: April 06, 2016, 10:22:18 pm
Thanks guys , that has been on the tip of my tongue since I read this post earlier.
6  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Burned by baked carnelian? Bummer! on: April 06, 2016, 06:20:43 am
Finished product as the color does not go in far typically. It then needs to be repolished.
7  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Hornitos Poppy Jasper on: April 04, 2016, 07:51:16 pm
That is an enviable piece of rock! Hornitos is very special.
8  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Burned by baked carnelian? Bummer! on: April 03, 2016, 07:46:01 pm
Some folks like togo to 550 F. You  must remember that the color may not penetrate far into the stone. Carnelian beads in India were traditionally "burned" 5 times starting with the rough and ending with the burning of the finished bead or cab. The early burnings were not for color but to slightly soften the rough  at each of the preforming stages. They have made carnelian beads for over 3,000 years and have made untold amounts. A lot of people soak the carnelian slabs in muriatic acid with iron nails in it for a month to add more iron to the quite porous agate. The
Germans were very good at this and they dried the agates in a warm dry environment for 3 months before burning them  to red.
9  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Rough on the bench and slabs off the saw (general minerals board) / Re: Burned by baked carnelian? Bummer! on: April 03, 2016, 03:38:29 pm
You can cut and heat treat this natural carnelian.
10  Lapidary Shop / Moderator, Catmandewe ( Tony ) / Discs, Wheels, Belts, Pads, and Polishing / Re: Using Resin Discs Without Gluing Them Down? on: March 30, 2016, 11:24:04 am
If you can bolt through the disc- pad glueing them down is optional in my shop. It would bother the heck out of some folks to use them this way and not bother others at all, you have to decide which camp you are in because you can get used to using non - glued discs and pads. The sic sanding discs can be used in the same way and it is a wonderful way of extending the life of your coarse diamond pads because coarse sic discs cut very quickly when newish and are inexpensive so they are easily replaced. Not having then glued to a backing plate makes the frequent required sic change outs  not a problem at all. When I was carving a lot I would sometimes sand and prepolish certain style grooves by putting on  a thick half inch rubber pad glued to the backing disc and then use a loose diamond pad of a larger size on top of it. This sanding pad draped over the edge of the backing plate and rubber backing and could be used in certain grooves if the speed was maintained at a moderate level. Of course the pads will lie flatter on the machine the faster they are rotating.
11  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Share Our Finished Cabochons and General Cabbing Questions / Tutorials / Re: question for the opal cutters out there on: March 30, 2016, 11:12:46 am

These require backing and a quartz cap in many cases. After the high and low spots have been ground off the opal to produce a flat plate for capping they are often very tiny and really not worth the effort.
12  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Share Our Finished Cabochons and General Cabbing Questions / Tutorials / Re: Cabbing on: March 24, 2016, 03:33:24 pm
If you are handy and not in a rush you can buy an arbor from a lapidary supply and mate it with a 1/3 or half horse continuous run motor . You can make or buy splash pans  and with a bucket for a water drip you are ready for wheels. With a 80 or 100 grit diamond wheel on one side and an expando drum with silicon carbide belts which you change out so you have a grit progression you are ready to cab. Used equipment is extremely popular  and most old equipment was overbuilt and easy to fix.Not much over built lapidary equipment made now unfortunately.
13  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Share Our Finished Cabochons and General Cabbing Questions / Tutorials / Re: Old stock Holley on: March 24, 2016, 01:18:34 pm
A man I cut stones for many years ago also had a black pearl business in Asia. He would buy very large amounts of Holley and I would get the best purple out of it to cut cabs to be sold in China. Apparently yhe people who favored the rare Asian natural purple jade were willing to pay enormous sums for the very best
holley   which is I think even better than very good purple jade. Wonderful rough.
14  Stone Talk / Moderator, Hummingbirdstones ( Robin ) / Share Our Finished Cabochons and General Cabbing Questions / Tutorials / Re: Old stock Holley on: March 23, 2016, 06:37:10 pm
There was a lot of blue Holley taken out, purple this good ,  saturated and clean was never common . Back when there were truck loads of Holley coming out ( literally) blue lace African agate was quite popular so I agree they were cashing in on the relative lack of good blues out there.The Cal-Nevada and Montana blues had not made a hit on the market yet but Ellensburg blues and the blue lace had peoples attention. A long time ago .



























15  Custom Designed Jewelry / Show Your Custom Jewelry Designing Photos / Re: A few new pieces on: March 23, 2016, 06:30:42 pm
Nice work once again.Pendants are fun.
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