Post by Tonyterner on Sept 5, 2007 14:35:16 GMT -5
I went to the local rock shop the other day and noticed they got in some labradorite. Being a sucker for anything green and shiny I went through the bin and found this piece which had a nice window of color.
Top surface is the colorful side in this pic
I wanted to make some slices on the saw so I cut parallel to the window and voila, no color. Or should I say just a touch of color at one corner. Decided I had already screwed it up so I'd try one more cut in the same plane. No color at all this time.
Based on this did I cut it wrong or does some of this material just not have color? Is it possible that the plane with the color warps through the piece (rock appears to be "layered")? If I did screw up the cut angle will it still turn out fairly well if I tumble it? TIA
I have some labradorite also and am finding it challenging to cut. I want to make necklace pendants out of it and have had to get an assistant to hold the stone up like it will be when worn as a necklace to determine the correct angle to cut, I hope I got it right. I hope that with a very high dome it will have a good flash. good luck on your cutting I think I will need it too
God put his best work in ROCKS. Etsy store, arendsagates
Post by firewalker45 on Sept 5, 2007 18:43:26 GMT -5
I can not speak from experience. I have only bought Labradorite in small pieces or slabs. Costs more but know what I am getting. From what I have read, you cut it right. Like some other rock it is like shooting craps. No way of knowing until you cut it. Daniel
Tony...I've, of course, have never cut ANYTHING! But I did notice a bucket at a rockshop that had Lab in it. Sitting on the very top was a hunk of yuck. It sat in a box that someone had written on...How Not To Cut Labradorite.
I took that to mean...cut it right or ya get crrrrrraaaapppp! Man...that stuffs not cheap you poor man!
liz opportunity is for the taking. Look inside yourself, you'll see. Then go clean up your own backyard...leave my yard to me. rossington collins band.
God of Multiple Parallel Universes Full of Rocks and Apprentice to THE ONE.
You're in luck, I'm am expert on labradorite. A couple of years ago I was at Richardson's Rock Ranch in Oregon. It was too hot to dig thundereggs so I shopped at the rock shop. They had a huge pile of Labradorite that practically glowed when watered down. It had spots of color on all sides so I slabbed it from various directions and ended up with spots of color (if I turned the slabs just right in the direct sunlight). I was so disappointed I sold the whole pan of slabs to someone for practically nothing. My expert advice? Buy a really nice slab already cut so you can see what you are getting. I wondered at the time if the thickness of the rock made it look better than when slabbed.
Sounds like you cut it correctly- but Lab is a tricky little animal- I have some of the massive form (used in countertops and such) and it is a bugger to get just right- As for tumbling the stuff- well being a feldspar it does have a good hardness- but being a fedspar it also will cleave (break) on a plane (basically break in a straight line) so it has to be tumbled alone- with lots of pellets- and lots of luck!!!!! Just work carefully and pay close attention to it and keep your fingers (and toes if you think it will help) crossed!
I can't tell if thats some Gneiss Schist, or that Schist is Gneiss. All I know is don't take it for Granite
God of Multiple Parallel Universes Full of Rocks and Apprentice to THE ONE.
Need to build a basement shop to really start rockin' again
Thanks all for the advise. The labradorite was $10 a pound, which is way more than I have ever spent on a rock before. I at least have the top slab that has a lot of color so its not a complete loss. My wife has already claimed a cab for herself eventhough I haven't gotten anywhere near cabbing it yet. I'll try the rest in the tumbler and see what gives.
Howdy.....I am by no means expert when it comes to labradorite but when I slab I try to keep the saw in the darker material so far I come out all right....Bob Rough face
Exactly! I've cut and cabbed quite a bit of Lab and I have also learned that cutting in the darker areas helps greatly. It's like some of the color (the good blues, purples and greens) resides on or close to the surface of the dark stuff.
I have also found that the color in stone bought at some rock shops and shows are not always the greatest. Their color looks great but is too close to the surface, so it goes away when cut, cabbed or polished.
I try to find pieces with lots of colorful "heels", elbows etc.. sticking out. I cut those off and make many of my cabs from them.
Saw blade also matters, I use a .012 gem blade to cut the lab, it is less abrasive. The coarser blades seem to cause surface fractures, pitting and such. That makes removal of more material necessary to get a good polish, which can result in loss of color.
Also, I use water and very little Lube Cool, for cutting Labradorite. Oils and coolants can soak into the stone and give the appearance of color loss.
I guess I went over my two cents worth, hope that helps.
Post by Tonyterner on Sept 10, 2007 14:54:09 GMT -5
Thanks all. Tom, after reading the link you provided I believe my piece and crystals going everywhich way in most of the rock. I got the first face OK so I should be about 3 or 4 cabs total. Not too bad.
captbob: Can we vote against Don's jakesrocks avatar change? Thumbs down
Feb 20, 2015 12:31:58 GMT -5
drocknut: LOL captbob
Feb 21, 2015 13:53:06 GMT -5
drocknut: hey, where is everybody?
Feb 22, 2015 17:41:29 GMT -5
Fossilman: Well on the west coast,it's to nice to be indoors....LOL Headed out hounding tomorrow myself...
Feb 22, 2015 20:07:22 GMT -5
drocknut: Happy hounding fossilman
Feb 23, 2015 14:51:45 GMT -5
darkhorseleather: I'm looking to see if the person that created the Mozarkite Missouri shaped stones, still has some?
Feb 23, 2015 16:06:35 GMT -5
edmohs: Is Everybody In!? The Rock'n About to Begin....mostly
Feb 23, 2015 19:00:23 GMT -5
Shotgunner: OMG - extreme weather warning in LA County tonight. Windchill MAY get below 32oF lol dang I might have to put pants on... and a hoodie!
Feb 23, 2015 22:07:00 GMT -5
jakesrocks: captbob, it wouldn't allow me to add long hair on a guy avatar.
Feb 23, 2015 23:40:24 GMT -5
Fossilman: Going to have to customize Don...............Thumbs up
Feb 25, 2015 10:33:24 GMT -5
drocknut: LOL Shotgunner.
Feb 25, 2015 17:21:09 GMT -5
Pat: Shotgunner, get out your long johns! Going to be in the low 40s during the night for the rest of the week here. Ice cream cone day tomorrow. Yippee!
Feb 25, 2015 21:45:42 GMT -5
Fossilman: T Shirt weather.....................
Feb 25, 2015 22:54:03 GMT -5
rockpickerforever: Supposed to get cold and windy here, couple inches of rain forecast for the weekend, and then some. Even the desert is supposed to get liquid sunshine. We need it, but why can't it rain during the week? So much the for the rock field trip this weekend.
Feb 26, 2015 11:00:52 GMT -5
rockpickerforever: Fossilman, making a nice hot batch of the Jalapeno jelly today, yum!! Can't get enough of that stuff! Might go out and use the stove in the trailer, so I'm not breathing chile pepper fumes all day, lol.
Feb 26, 2015 11:04:07 GMT -5
rockpickerforever: Oh, I should mention... Cold here is maybe down into the 40s. Not that below freezing or below 0 type of insanity. Who can live in such a place that has those temps? And all that white stuff, uggghhhh!
Feb 26, 2015 11:11:22 GMT -5
drocknut: Chili pepper fumes, one way to clear out the sinuses..lol. I can handle the cold (btw 40 doesn't count as cold yet) but that hot stuff you call jelly geez how can you eat that...lol.
Feb 26, 2015 12:16:47 GMT -5
rockpickerforever: Diane, it's not the sinuses, the fumes make you gag and your throat burn. Trying to be considerate of poor, sick Lucy. Diane, you just don't know what you're missin. And yes, considering what it costs to live here, 40 degrees IS damn cold, lol.
Feb 26, 2015 12:42:17 GMT -5
edmohs: I'll just be grinding in the rain this weekend. And if you heard my singing it sounds just the same. rain or no rain...mostly
Feb 26, 2015 18:53:11 GMT -5
Fossilman: Tammy just made up a batch of Habanero jelly last week...........Yes,it clears the house for awhile...LOL Love that jelly too...Taking a jar or two to Roy's today..
Feb 27, 2015 10:14:32 GMT -5