tribeunited
fully equipped rock polisher
![*](//storage.proboards.com/forum/images/stars/star_green.png) ![*](//storage.proboards.com/forum/images/stars/star_green.png)
Member since May 2024
Posts: 1,523
|
Post by tribeunited on Jul 13, 2024 15:50:52 GMT -5
I have a slab here (Polish Flint Stone) which has what I believe is a fracture. I want to confirm this, because the husband says he doesnt' think it is - he thought it was a fracture that resolidified because its smooth. Can someone help out with this? I don't work with stone myself so I don't know what this does to diminish the workability or value of something like this. Thanks! ![](https://res.cloudinary.com/dosm6sdda/image/upload/v1720903811/eW6b1oEnTMqLzrTaeV3_pg_uxivah.jpg) ![](https://res.cloudinary.com/dosm6sdda/image/upload/v1720903811/uvuVthucSa-2okz-xH-2vw_c0jahx.jpg) ![](https://res.cloudinary.com/dosm6sdda/image/upload/v1720903811/ZGnoHor0Q_KtoOWiBBSrtA_zkwxtk.jpg)
|
|
dreamrocks
fully equipped rock polisher
![*](//storage.proboards.com/forum/images/stars/star_green.png) ![*](//storage.proboards.com/forum/images/stars/star_green.png)
I got lucky this morning and was able to post this no others since
Member since November 2018
Posts: 1,174
|
Post by dreamrocks on Jul 13, 2024 16:07:24 GMT -5
It looks like it but it could have healed itself Can you feel it using your thumbnail rubbing it across the fracture?
Nice looking stuff by the way!
|
|
tribeunited
fully equipped rock polisher
![*](//storage.proboards.com/forum/images/stars/star_green.png) ![*](//storage.proboards.com/forum/images/stars/star_green.png)
Member since May 2024
Posts: 1,523
|
Post by tribeunited on Jul 13, 2024 16:08:51 GMT -5
No, that is why the debate. Can't feel any flaw it just looks cracked on both sides.
|
|
|
Post by cabby on Jul 13, 2024 16:11:01 GMT -5
In the final picture you can see a gap at the top of the fracture, so there is at least some material missing. Doesn’t seem very weathered in the gap. Have you tried wetting it? A good dunk or splash, not just light spray. Get it wet then check regularly as it dries. A healed fracture should dry at about the same rate as the rest, while an “open wound” would stay damp a lot longer. I’m sure there’s more ways, but that’s how I often notice the cracks in the first place when cleaning rocks.
|
|
tribeunited
fully equipped rock polisher
![*](//storage.proboards.com/forum/images/stars/star_green.png) ![*](//storage.proboards.com/forum/images/stars/star_green.png)
Member since May 2024
Posts: 1,523
|
Post by tribeunited on Jul 13, 2024 16:16:04 GMT -5
thanks cabby - I like that explanation, I'm going to do it now. ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) Ok here are my results - towards the top of the rock where it looks damaged it dries slower. as it gets further into the stone, it dries at the same rate. So I would guess a partially healed fracture?
|
|
dreamrocks
fully equipped rock polisher
![*](//storage.proboards.com/forum/images/stars/star_green.png) ![*](//storage.proboards.com/forum/images/stars/star_green.png)
I got lucky this morning and was able to post this no others since
Member since November 2018
Posts: 1,174
|
Post by dreamrocks on Jul 13, 2024 16:17:08 GMT -5
Kinda sounds like it’s healed over but still possible to be very fine.
|
|
dreamrocks
fully equipped rock polisher
![*](//storage.proboards.com/forum/images/stars/star_green.png) ![*](//storage.proboards.com/forum/images/stars/star_green.png)
I got lucky this morning and was able to post this no others since
Member since November 2018
Posts: 1,174
|
Post by dreamrocks on Jul 13, 2024 16:17:44 GMT -5
Sounds like your learning pretty fast
|
|
tribeunited
fully equipped rock polisher
![*](//storage.proboards.com/forum/images/stars/star_green.png) ![*](//storage.proboards.com/forum/images/stars/star_green.png)
Member since May 2024
Posts: 1,523
|
Post by tribeunited on Jul 13, 2024 16:24:41 GMT -5
Thanks dreamrocks - that's because my teachers are so wise ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) I'm calling this a partially healed fracture when I point out the flaws. ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) You guys are awesome. ![:)](//storage.proboards.com/forum/images/smiley/smiley.png)
|
|
|
Post by cabby on Jul 13, 2024 16:24:56 GMT -5
In the pics the crack looks darker on one face than the other. Could be partially healed, could be wider on one face than the other, could be packed with debris… got any magnification? Any debris that filled it is probably course enough to tell the difference in material even with an 10x loupe. Either way it would be pretty easy to cut usable material around that fracture.
|
|
|
Post by rockjunquie on Jul 13, 2024 16:38:28 GMT -5
In a slab that size, that would be easy to work around. It's often fractured, so I wouldn't sweat it.
|
|
tribeunited
fully equipped rock polisher
![*](//storage.proboards.com/forum/images/stars/star_green.png) ![*](//storage.proboards.com/forum/images/stars/star_green.png)
Member since May 2024
Posts: 1,523
|
Post by tribeunited on Jul 13, 2024 16:46:06 GMT -5
I'm glad because I have so many of these, plus rough, but only this one was clean enough to sell. The rest I gotta possibly sand. This flint is so smooth though, the water beads off more than wets it!
|
|
|
Post by jasoninsd on Jul 13, 2024 16:48:32 GMT -5
Dangit cabby ! You said both things I was going to say (the loupe and dry-time for cracks)! LOL tribeunited - If you don't have a loupe, I would highly recommend getting one. They can be had fairly inexpensively. I use one quite frequently when I'm marking out shapes for preforms. Sometimes I can't tell if something is a healed fracture or not when looking at it with the naked eye. However, the loupe quickly lets me know which it is... EDIT - That's a SICK piece of Polish Flint by the way!! ![:)](//storage.proboards.com/forum/images/smiley/smiley.png)
|
|
tribeunited
fully equipped rock polisher
![*](//storage.proboards.com/forum/images/stars/star_green.png) ![*](//storage.proboards.com/forum/images/stars/star_green.png)
Member since May 2024
Posts: 1,523
|
Post by tribeunited on Jul 13, 2024 16:52:31 GMT -5
I have loupes somewhere, and couple boxes of weird masks with different removable magnification lenses and headlamps? Hrmm, might have to try one on. ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) Thanks jasoninsd and cabby
|
|
|
Post by cabby on Jul 13, 2024 17:10:42 GMT -5
I have loupes somewhere, and couple boxes of weird masks with different removable magnification lenses and headlamps? Hrmm, might have to try one on. ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) Thanks jasoninsd and cabbyI’ve tried some swappable magnifying glasses, but my cheap ones didn’t have a way to adjust to correct for my vision, so I never really used it. I pull out the 10x loupe with pretty much every rock I touch 😁 then i look for interesting areas to stick under the 40/80x microscope… then i might break out the 100x…. Then it’s 3 hours later and i have a headache. Um, but a loupe is super useful.
|
|
|
Post by jasoninsd on Jul 13, 2024 17:28:29 GMT -5
I have loupes somewhere, and couple boxes of weird masks with different removable magnification lenses and headlamps? Hrmm, might have to try one on. ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) Thanks jasoninsd and cabby ...Optivisors. I wear one when I'm cabbing...not while I'm grinding, but between steps to look for scratches. If I use a loupe, there's nothing BUT scratches because the magnification is too much! LOL I have loupes somewhere, and couple boxes of weird masks with different removable magnification lenses and headlamps? Hrmm, might have to try one on. ![:)](//storage.proboards.com/forum/images/smiley/smiley.png) Thanks jasoninsd and cabby I’ve tried some swappable magnifying glasses, but my cheap ones didn’t have a way to adjust to correct for my vision, so I never really used it. I pull out the 10x loupe with pretty much every rock I touch 😁 then i look for interesting areas to stick under the 40/80x microscope… then i might break out the 100x…. Then it’s 3 hours later and i have a headache. Um, but a loupe is super useful. So...I'm not the ONLY one who stares at the "microcosm" for far longer than I probably should! Whew!! LOL Hmmm...staring at an object for far longer than one should...and finding universes within a small rock...I wonder if this is where the term "stoned" came from! LOL
|
|
|
Post by cabby on Jul 13, 2024 17:45:41 GMT -5
jasoninsd once I start looking at rocks there is no stopping lol. I literally have to forbid myself from breaking out the loupe and/or microscopes because I still have things to get done. I end up getting fascinated and want to check every single millimeter of the rocks!
|
|
|
Post by jasoninsd on Jul 13, 2024 17:53:54 GMT -5
jasoninsd once I start looking at rocks there is no stopping lol. I literally have to forbid myself from breaking out the loupe and/or microscopes because I still have things to get done. I end up getting fascinated and want to check every single millimeter of the rocks! I know I can set a "screen time" limit on my phone...but I don't think I have that option on my loupe! LOL
|
|