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Post by mohs on Jun 13, 2014 13:40:01 GMT -5
That is a fine piece of lace w/druzy in the center tough call of how to cut, tumble or polish ?
Perhaps do noting seems you like it as specimen
as become more familiar with lace you can make a better decision down that rocky road mohs
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transcendental
spending too much on rocks
Member since June 2014
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Post by transcendental on Jun 13, 2014 18:27:36 GMT -5
I don't think it's a druzy I think it's a hematite with quartz mix Got these 2 together. Woman who gave them to me got them out west. I do really like it, it's for my personal collection. I have been looking for about a pound of rough to tumble to get a feel for the material but found nothing this intricate this size. I'm definitely not touching it until I know more what I'm doing but it's yelling at me... I can see its potential and sitting on my shelf as is you can't tell how special it really is. Was just wondering what someone else would do.
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Post by mohs on Jun 13, 2014 19:08:01 GMT -5
hard to tell in the picure but I referring to the center of that fortification top photos-second picture down-left side
and the pictures you just added what is the rock on the right? is it just there for a comparison? looks like peridot is growing on it
o & I meant do nothing- not do noting-- in my upper post just to note my foopah mostly
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transcendental
spending too much on rocks
Member since June 2014
Posts: 459
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Post by transcendental on Jun 13, 2014 19:30:39 GMT -5
No I wasn't looking at the same spot you were. It's really hard to see even in person because it's so small. I think we sell a loupe at work. Might get it to take a better look. In person it looks like the same material in this last pic where the 2 stones are butted up against eachother, Grey and sparkles.
I've actually had a really hard time figuring that other one and a larger one similar to it out. My conclusion is that it's a hematite with either pyrite or calcite.
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Post by mohs on Jun 13, 2014 19:47:45 GMT -5
that could very well be pyrite at first glance in the picture it looks green/crystally but it very well could be metalish
I don't see the same section of the agate fortification that I think is druidic in the second picture just a comparison of the two rocks
one- a really nice lace w/hematite and the second- on the right - what I think- is either peridot growing or your conclusion pyrite or calcite
if that rock is full of pyrite it would be quite heavy in a dense sort of way
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transcendental
spending too much on rocks
Member since June 2014
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Post by transcendental on Jun 13, 2014 20:13:25 GMT -5
Yeah we Definitely weren't looking at the same spots. I'm going to buy the loupe and try to take pics thru it... idk if it'll work but I'll try. There's actually 3 spots on it you've made me question if it's druzy or just fractured quartz or hematite.
The 2 hematite are heavy for their size but I thought hematite on its own was a pretty dense rock so I didn't factor that in figuring it out
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Fossilman
Cave Dweller
Member since January 2009
Posts: 20,687
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Post by Fossilman on Jun 14, 2014 7:59:56 GMT -5
NICE!
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transcendental
spending too much on rocks
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Post by transcendental on Jun 16, 2014 10:03:06 GMT -5
Ok I got a lopue, pics aren't great but better than I could have gotten without using it. Ps: not easy to focus the camera thru a loupe OK so here's the fortification I think it's just fractured microcrystalline quartz..... but this is totally amature hour at my house so I took some more pics from dif spots on the stone where there is obviously quartz To compare for a second opinion There's also a spot on the edge, it's a v shaped notch with crystal structure, not sure if it formed like this or if it's just a result from crushing the larger stone to form this rough Here's that hematite while I was at it
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tkvancil
fully equipped rock polisher
Member since September 2011
Posts: 1,546
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Post by tkvancil on Jun 16, 2014 10:52:45 GMT -5
Crazy Lace .... one of my faves. If you want to try tumbling some rough to get a feel, Kingsley North has Crazy Lace. I've bought it from them three times and had good luck with it. It's always a mixed bag with the rough. Some will come out great and some will be grit carriers only. Some will have a lot of matrix. It will grind off in the first month and you'll have a red thick slurry. Sometimes in the first week the slurry will get so thick it doesn't grind well. Some will have areas that resemble a sponge with veins running through. (best description I can give) The sponge looking crystals often open up pits and the veins are sometimes harder and raise up as the spongy stuff undercuts. There will also be a white crystal on some pieces. Softer than the rest of the rock it will undercut as well. Here's some I rotary polished Some more polished in a vibratory tumbler
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transcendental
spending too much on rocks
Member since June 2014
Posts: 459
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Post by transcendental on Jun 16, 2014 13:14:16 GMT -5
Those are great! Best I've seen in this size range actually. Great tumbles very shiny. Thanks for the tips. I'll check out their website
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Post by mohs on Jun 16, 2014 14:32:09 GMT -5
your loupe pictures a re fabulous good experimentation that fortification area is cool with the quartz specks guess I wouldn't call it complete druidification
of course I'm having difficult time downloading the rest of the pictures so I'll be back
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transcendental
spending too much on rocks
Member since June 2014
Posts: 459
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Post by transcendental on Jun 16, 2014 16:13:12 GMT -5
Yeah I'm really surprised by how well that worked... especially considering I was using my camera phone. I used the type of loupe you clip onto a pair of glasses. I thought the regular kind ( the one you put over your eye and scrunch your face a bit to hold) would mess with the camera blocking light.
Take your time I know it's pic heavy, was having fun with this lol. If you still have trouble I can make an album on imgur and send you a link
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miander
spending too much on rocks
Searching for the shop of my dreams...
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crazy lace
Jun 16, 2014 22:06:00 GMT -5
via mobile
Post by miander on Jun 16, 2014 22:06:00 GMT -5
That is a fantastic rock! It seems like there are sections of different to quality specimens. If I were lucky enough to call it mine, I would separate the different formations, cut a few slabs of each, save the end cuts polished for personal collection and tumble what's left! That's just me fantasizing, but I would love to see what you end up doing with it, thanks for sharing!
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transcendental
spending too much on rocks
Member since June 2014
Posts: 459
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Post by transcendental on Jun 16, 2014 23:28:19 GMT -5
That is a fantastic rock! It seems like there are sections of different to quality specimens. If I were lucky enough to call it mine, I would separate the different formations, cut a few slabs of each, save the end cuts polished for personal collection and tumble what's left! That's just me fantasizing, but I would love to see what you end up doing with it, thanks for sharing! I wish it was big enough for me to do that, it's only 1.5 inches long why I'm having such a hard time deciding what to do. All I've heard about this type of material undercutting, I don't think tumbling is the way to go. I might just leave it as is and add it to my collection and know in my mind how cool it is and that I didn't damage/ loose a lot of its character trying to get it to shine. I'll practice with some similar stuff once I get paid
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Fossilman
Cave Dweller
Member since January 2009
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Post by Fossilman on Jun 17, 2014 10:51:47 GMT -5
Could just shape and shave it too...
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transcendental
spending too much on rocks
Member since June 2014
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Post by transcendental on Jun 17, 2014 15:17:30 GMT -5
That's still a possibility, fossilman. Going to see how similar material works
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Post by pghram on Jun 17, 2014 21:02:18 GMT -5
Nice material, could the "pyrite" one be Bornite, aka peacock ore?
Rich
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transcendental
spending too much on rocks
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Post by transcendental on Jun 19, 2014 9:30:52 GMT -5
It streaks a brownish red so the majority composition is hematite. Bornite, pyrite and peacock ore (chalcopyrite?) Are all Re - Os sulfides. It could be any of the three but I have no way to determine which it is
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