jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Feb 27, 2024 23:57:11 GMT -5
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Post by liveoak on Feb 28, 2024 7:23:26 GMT -5
Those are nice Jim ! So many colors & patterns.
Patty
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ThomasT
spending too much on rocks
Trying to keep the dust down.
Member since June 2022
Posts: 259
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Post by ThomasT on Feb 28, 2024 7:42:07 GMT -5
Wow... those are colorful.
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pebblesky
fully equipped rock polisher
Purchased another UV mini bowl for tumbling
Member since September 2022
Posts: 1,442
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Post by pebblesky on Feb 28, 2024 12:56:06 GMT -5
Wow they are so nice looking! The left three pieces from this picture look like a theme of flower, butterflies and birds.
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cardiobill
freely admits to licking rocks
Member since March 2012
Posts: 879
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Post by cardiobill on Feb 28, 2024 17:32:55 GMT -5
Wowzers, those came out great!!! They are clear as can be and not frosted at all Great job
Bill
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victor1941
fully equipped rock polisher
Member since November 2011
Posts: 1,979
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Post by victor1941 on Feb 28, 2024 22:28:28 GMT -5
This material is definitely nice!
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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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
Cave Dweller
Member since October 2012
Posts: 36,159
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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
Cave Dweller
Member since October 2012
Posts: 36,159
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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
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Feb 29, 2024 0:29:40 GMT -5
Wowzers, those came out great!!! They are clear as can be and not frosted at all Great job Bill Long time no see, hope all is well with you Bill. Thick sugar slurry and a very powerful vibe kept the frost away ! Odd, the vibe tub is homemade from steel, no rubber/plastic. The glass vibes against hard steel. Testimony to protective ability of thicker slurry. Makes one wonder if a very powerful vibe with very thick slurry is the key to tumble polishing softies like calcite and fluorite. Actually that is the answer I was told, Chinese made industrial vibes are powerful and are used to vibe soft rocks in very thick protective slurry. I was told this by an owner of a big tumbling operation in Madagascar.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Feb 29, 2024 0:37:18 GMT -5
This material is definitely nice! Perhaps the southern colloquial term "tacky" could be used as a fair adjective Victor. As a kid I remember when a flashy colorfully dressed attractive lady would walk by and turn Dad's head Mom(from small town Florida) would in a jealous reply say "she's so tacky" lol. I used to fall out laughing until Dad gave me a you-will-pay look.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Feb 29, 2024 0:42:30 GMT -5
vegasjames, what if I lied and said I found these as tektites around the Carolina Bays You have to know those bays are ice impacts
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Post by liveoak on Feb 29, 2024 7:45:34 GMT -5
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. Interesting Jim.
Obviously, your tumbling experience pays off !
When you have melted them, does the glass gloss over or do you still have to vibe it for polish ?
Sounds like you're still having to tumble. My brain would have guessed they would gloss, like enamel does.
Patty
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Feb 29, 2024 7:51:26 GMT -5
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. Interesting Jim.
Obviously, your tumbling experience pays off ! When you have melted them, does the glass gloss over or do you still have to vibe it for polish ?
Sounds like you're still having to tumble. My brain would have guessed they would gloss, like enamel does.
Patty
If the heat schedule is known and the glass is good fusing glass it will cool with a high polish with no tumbling. In my case I have to tumble most of what is melted. The tumbling allows a whole new angle to glass fusing small stuff like this.
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Post by vegasjames on Feb 29, 2024 7:59:15 GMT -5
vegasjames , what if I lied and said I found these as tektites around the Carolina Bays You have to know those bays are ice impacts Then would have to say that you were visiting another planet also with a place called Carolina Bays.
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Post by rockjunquie on Feb 29, 2024 8:29:31 GMT -5
Thanks for posting these again. They are just too beautiful. Lots of eye candy.
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roughingon
off to a rocking start
Member since January 2024
Posts: 13
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Post by roughingon on Feb 29, 2024 11:25:42 GMT -5
So pretty!
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Post by aDave on Feb 29, 2024 13:02:26 GMT -5
Most are from hand blown vases and the local glass blower's shards. Plier type glass nippers were used to chip perimeter shape. Rotary shaped and finished in a modified vibe. Thick sugar 'syrup' used in vibe steps. Thanks for looking. That's great looking stuff James. Is that leftover glass when you first started working on it, or are you still going out and searching for it? I seem to recall you've gone through a fair amount of it making slabs and stuff like in this thread. What do you do with it, other than supplying knappers with some slabs? I used to FALL OUT laughing until Dad gave me a you-will-pay look. Well, now you have me cracking up by seeing that term being used. Is that actually a southern colloquialism? The reason I ask is that it was constantly used in the predominantly black South Los Angeles, where there were significant numbers of folks whose families relocated to Los Angeles (among other places) during the great migration following WWII. It's use was so prevalent, I've picked it up and still use it every now and then. If you didn't know I worked many FD assignments down there, so I had a lot of time to be exposed to the term, especially while I was working as a paramedic there. "Done fell out" or "fell out" what what we heard from the citizens. On the Department, we just shortened it to "DFO'd" to describe when it happened to someone. Back to your regularly scheduled programming.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Mar 1, 2024 13:11:46 GMT -5
vegasjames , what if I lied and said I found these as tektites around the Carolina Bays You have to know those bays are ice impacts Then would have to say that you were visiting another planet also with a place called Carolina Bays. Lol, maybe one day the great minds will figure it out James. They are sitting there trying to tell us something.
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jamesp
Cave Dweller
Member since October 2012
Posts: 36,159
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Post by jamesp on Mar 1, 2024 14:38:12 GMT -5
Most are from hand blown vases and the local glass blower's shards. Plier type glass nippers were used to chip perimeter shape. Rotary shaped and finished in a modified vibe. Thick sugar 'syrup' used in vibe steps. Thanks for looking. That's great looking stuff James. Is that leftover glass when you first started working on it, or are you still going out and searching for it? I seem to recall you've gone through a fair amount of it making slabs and stuff like in this thread. What do you do with it, other than supplying knappers with some slabs? I used to FALL OUT laughing until Dad gave me a you-will-pay look. Well, now you have me cracking up by seeing that term being used. Is that actually a southern colloquialism? The reason I ask is that it was constantly used in the predominantly black South Los Angeles, where there were significant numbers of folks whose families relocated to Los Angeles (among other places) during the great migration following WWII. It's use was so prevalent, I've picked it up and still use it every now and then. If you didn't know I worked many FD assignments down there, so I had a lot of time to be exposed to the term, especially while I was working as a paramedic there. "Done fell out" or "fell out" what what we heard from the citizens. On the Department, we just shortened it to "DFO'd" to describe when it happened to someone. Back to your regularly scheduled programming. Most of that glass is from vases and broken scraps from the glass blowers Dave. The glass blower in Atlanta let me haul off like a ton of scrap and is sitting on the back 40 so to speak. No need to look for more stock. The patterns are their patterns, most are beyond my skill ability and can only be created by the blowing process which makes them unique compared to what the average basement glass artist can do. I can't say that 'tacky' is southern but do hear the term often from older southern country folks(ladies(elderly southern magnolias ) mostly). Almost always in an amusing derogatory manner. 'fell off' is another old term older southern folks use, this mean that you lost weight. There is one single reference to 'fell out' in the Bible having to do with Peter's prison shackles falling off. 'fell out'/'done fell out' may be a derivative usually referring to someone losing something, a common expression in the south. It gets the job done lol ! Maybe in the paramedic field it referred to loosing life or limb. Which leads to the source of many Black terms that are also derived from their dependence on the Bible during their difficult slavery years, i.e., look at Bible based lyrics of early Black jazz/blue musicians, many of these lyrics copied/used in rock n roll music perhaps because the average rock n roller never had seen hard times like these poor black musicians. All interesting the origins of American slang/sayings.
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