lunker
Cave Dweller 
Member since April 2021
Posts: 430
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Post by lunker on Dec 12, 2021 13:43:43 GMT -5
I have some self collected dino bone I want to cab. I just wonder if slabs can be cut with oil or if it needs to be done with water. Any advice
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Post by jasoninsd on Dec 13, 2021 1:57:51 GMT -5
I can't answer the question with regards to the oil or water...but I can tell you I've cut it and scarred it up pretty badly as I used a new blade when I was cutting it. It left deep saw marks in it because the blade wasn't broken in enough and the the diamonds just gouged the crap out of it. I've cut it with a broken in blade and it didn't have any ill effects. I strictly use water in my 10". I'd love to see pics of the rough before you cut it...if you get a chance...and don't mind posting them.  |
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lunker
Cave Dweller
Member since April 2021
Posts: 430
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Post by lunker on Dec 13, 2021 10:06:05 GMT -5
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Post by Rockoonz on Dec 13, 2021 11:46:06 GMT -5
My experience with saw cutting bone is the less agatized stuff that tends to undercut can definitely cause a saw blade to wander more than nicely silicified gem bone. When I cut it I generally will window a corner with the Genie first if I have any questions on the hardness. If it undercuts a lot or it doesn't polish well I will sometimes cut thin slabs to be quartz capped, makes nice cabs that way.
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lunker
Cave Dweller
Member since April 2021
Posts: 430
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Post by lunker on Dec 14, 2021 12:10:55 GMT -5
I tried cutting the darker dino bone today. No good. It just crumbled about halfway through the cut. Now I know at least.
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Post by manofglass on Dec 14, 2021 14:54:13 GMT -5
Try a coat of 330 epoxy let it set then cut it you may have to coat each slab
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lunker
Cave Dweller
Member since April 2021
Posts: 430
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Post by lunker on Dec 14, 2021 18:56:42 GMT -5
Try a coat of 330 epoxy let it set then cut it you may have to coat each slab Thanks Walt. I'm gonna have to try that next time. I need to find some more bone first. |
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Post by jasoninsd on Dec 14, 2021 21:21:53 GMT -5
I tried cutting the darker dino bone today. No good. It just crumbled about halfway through the cut. Now I know at least. That really sucks Lunk! Where (roughly) did you find this? I've read somewhere that not all dino bone is conducive for slabbing and cabbing. I picked up a "mixed lot" of dino bone on eBay quite a while ago - a little more than a SFRB full. I finally got around to cutting it a couple weeks ago. About half of it wasn't really "usable" for lapidary. The other half was okay...but not great. |
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lunker
Cave Dweller
Member since April 2021
Posts: 430
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Post by lunker on Dec 14, 2021 22:19:00 GMT -5
I tried cutting the darker dino bone today. No good. It just crumbled about halfway through the cut. Now I know at least. That really sucks Lunk! Where (roughly) did you find this? I've read somewhere that not all dino bone is conducive for slabbing and cabbing. I picked up a "mixed lot" of dino bone on eBay quite a while ago - a little more than a SFRB full. I finally got around to cutting it a couple weeks ago. About half of it wasn't really "usable" for lapidary. The other half was okay...but not great. I found it around here. It's pretty common here. |
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rewdownunder
spending too much on rocks
Member since March 2012
Posts: 357
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Post by rewdownunder on Dec 15, 2021 0:50:19 GMT -5
I have more than a milk crate full of dino bone that has a large amount of calcite replacement giving it a great black and white pattern. It looks great and shows lots of structure but is worthless for lapidary projects because it undercuts and plucks out the calcite grains. It is even hard to slab and forget trying to polish it. I have had to lower my standards to spraying it with clear art spray. Teachers and students love the material and we have given lots of away. It was given to me by a professional cutter who was very disappointed he could not cab it. I do not have a location but am keeping my eyes open. It came out of an old collection but passed thru several dealers before my cutter got it.
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Nov 15, 2024 17:44:51 GMT -5
Nov 15, 2024 17:44:51 GMT -5
