jamesp
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Post by jamesp on Feb 29, 2024 0:18:00 GMT -5
Wow they are so nice looking! The left three pieces from this picture look like a theme of flower, butterflies and birds. Another way to make these pebblesky is by piling glass blower scraps into a brick mold and melting a 6"x2"x2" brick like this and then sawing it into 1/4" slabs for cabs/tumbles. This one needed higher temps, it did not quite liquify all the way. (early experiment stage brick)
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jamesp
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Post by jamesp on Feb 29, 2024 0:08:29 GMT -5
Wow... those are colorful. Thanks Thomas. Glass does have the ability to contain color. Most obsidian is colored with browns probably due to common iron in the volcano. Colors come from various metals melted into the glass. Gold/silver/copper/cadmium/antimony/cobalt/etc.
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jamesp
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Post by jamesp on Feb 29, 2024 0:03:12 GMT -5
Those are nice Jim ! So many colors & patterns. Patty Lazy lazy lazy. The tumbler did all the shaping Patty. Without knowing the temperature 'recipe' for all these different types of glass I could not 'melt' these into blobs before tumbling. If heat recipe is known you simply melt them into cab shapes and reduce tumble time greatly. If not known they may crack and be unstable. Odd thing about glass, if you put broken chunks (say 3/4" chunks like road gravel on the shelf)they melt to a 1/4" thick cab everytime. It is a characteristic of glass to melt to 1/4" thick at it's specified melting temp. These 6 tumbles were like 6 piles of 6 little chunks each of glass blower scraps piled together so they would melt into each other. They pretty much looked just like they are before tumbled and after tumbled. Talk about easy cabs...
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jamesp
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Post by jamesp on Feb 27, 2024 23:57:11 GMT -5
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jamesp
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Post by jamesp on Feb 24, 2024 16:41:52 GMT -5
Thanks for that thought, Jim, jamesp. I think I've only done 1 Mahagonny obsidian cab, a while back. I'll have to look through my slab stash & see what I got. Patty Anyone that can carry 2 5 gallon buckets for a mile and have a routine conversation at the same time can do most anything.
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jamesp
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Jimite
Feb 24, 2024 9:44:20 GMT -5
Post by jamesp on Feb 24, 2024 9:44:20 GMT -5
Patty if you can cab glass you can do obsidian cabs. They are one in the same. I would think they require different processing than harder stones.
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jamesp
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Post by jamesp on Feb 24, 2024 4:13:36 GMT -5
Sweet cabs liveoak Patty. You sure have the polish figured out. Never knew but should have figured you had the cab skills mastered. I should consider copyrights on the name ! I have a deactivated ETSY site named 'Gem Glass' but selling jewelry on ETSY can be a challenge and failed to have any luck. Those darn bubbles come with the brick casting process not to mention the stock China glass has bubbles in it to begin with. The arrowhead guys complain about the bubbles too. American made fusing glass is so much more user friendly and bubbles rarely get caught in it. Maybe the sparkle glass had less bubbles, it was fused as plates instead of bricks. Easier to lose the bubbles if casting cab size morsels but they don't have the character of the brick process.
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jamesp
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Post by jamesp on Feb 19, 2024 1:44:42 GMT -5
Gabriel KILLED that! Wowzer!! Knapping points has become popular Jason. Fluting points is top of the game. Flutes assist hafting. I believe spearheads were also fluted to serve as a blood groove as your military bayonet had. With jig: Native man's method: Who does this ?:
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jamesp
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Post by jamesp on Feb 18, 2024 2:31:39 GMT -5
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jamesp
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Post by jamesp on Feb 18, 2024 2:25:15 GMT -5
by Mike Cook
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jamesp
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Post by jamesp on Feb 11, 2024 9:16:48 GMT -5
It must be so gratifying to you to see your art glass turned into... art. It is the pinnacle of fusing it Tela. The fellow above sent me a couple of smaller arrowheads in the deal.
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jamesp
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Post by jamesp on Feb 11, 2024 8:44:09 GMT -5
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jamesp
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Post by jamesp on Feb 11, 2024 1:55:27 GMT -5
Making Moh 7 glass might be a challenge Henry. Yeah...but if ANYONE can figure out how, my money's on you figuring it out! How about casting diamond dust in it so that it eats up diamond wheels Jason. That would be sinister. Glass doesn't like to have many foreign objects cast into it. Opal is one rock that it can have cast into it. Adventurine dust can be added for sparkles.
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jamesp
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Post by jamesp on Feb 10, 2024 17:10:10 GMT -5
jamesp I think I see where you headed with these "Polka Dots". After seeing the crazy money someone just spent on a very small slab of Ocean Jasper, you're trying to create your own. First the polka dots, next the hardness. Can't fool this old SE Texas boy!! Making Moh 7 glass might be a challenge Henry.
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jamesp
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Post by jamesp on Feb 9, 2024 13:02:02 GMT -5
Had the rods not been had cheap that pour would have cost a fortune in orange glass rods. It used about 24 ounces of them, they are sold by the ounce. It would have turned out better if the rods were doubled in quantity. Dots can easily be made in bulk. Just spread say 1/8" chunks of broken up glass on to the shelf and melt. The red was 1/8" chunks and the yellow is 1/16" chunks. Glass just melts into balls when small or cabs when larger chunks. The tricky part is to melt the matrix surrounding the dots without collapsing the shape of the dots. In nature balls(dots) are often low flow melted/silicified in a powdered matrix which preserves the dot shape. Maybe this is the case with HankRocks ocean jasper.
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jamesp
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Post by jamesp on Feb 9, 2024 1:51:30 GMT -5
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jamesp
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Post by jamesp on Feb 8, 2024 15:31:38 GMT -5
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jamesp
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Post by jamesp on Feb 8, 2024 15:22:06 GMT -5
What I'm wondering is would the Cobalt Chloride glass change color with the weather? Perhaps that is what causes the blue/green colored antique glass we find at old dumps ? I do know manganese rich glass sunburns to purple even if it starts out clear.
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jamesp
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Post by jamesp on Feb 8, 2024 15:19:27 GMT -5
HAPPY BIRTHDAY JIM!! Quite often when I see a tractor, I think of you! So...here's a birthday spankin' for ya! LOL I fell out laughing Jason. Thanks for that.
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jamesp
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Post by jamesp on Feb 8, 2024 15:17:40 GMT -5
not worthy
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