|
|
Post by puppie96 on Jun 13, 2005 12:15:41 GMT -5
As requested, here are a couple of closeups of those purple and green rocks!   Thanks! |
|
rollingstone
starting to spend too much on rocks
Member since July 2009
Posts: 236
|
Post by rollingstone on Jun 13, 2005 14:31:18 GMT -5
No idea on the green, but that purple has to be amethyst, doesn't it? I can't think of anything that has that shade of purple. Maybe someone else knows another purple rock like that? Do you have amethyst where you are? Looks like it should polish up nicely.
|
|
rollingstone
starting to spend too much on rocks
Member since July 2009
Posts: 236
|
Post by rollingstone on Jun 13, 2005 14:45:41 GMT -5
Here's a pic (dry) of some dark amethyst rough ... I think it looks a lot like the purple colour in your close-up pics. Some of the rough in my pic has an orangy iron oxide stain on the exterior that looks quite a bit like the orange part on your super close-up. So I vote for amethyst.  |
|
|
|
Post by Cher on Jun 13, 2005 15:08:01 GMT -5
That sure looks like amethyst to me. I have some amethyst too that has some reddish stuff in it, then I have some that looks like it's got gold floating in it too. *smile* Those are just great Pup, thanks for taking the extra time to post them.
Cher
|
|
|
|
Post by connrock on Jun 13, 2005 15:08:21 GMT -5
I have to agree with rollingstone with the amethyst.
The only other material I can think of that would have the same color and is fairly common is fluorite and fluorite is much softer then amethyst.
Tom
|
|
|
|
Post by puppie96 on Jun 13, 2005 22:33:18 GMT -5
Interesting. I first found a couple of loose crystals on the path that looked like amethyst. I was really excited of course. Then as I picked up more rocks I started finding green rocks with inclusions that were purple and more of the green glassy stuff. The thing is, with the way it crusts on top of green rocks or occurs in inclusions that are NOT crystals, makes it not look like amethyst to me. It seems like we've got this green to purple color range hence fluorite. I don't know, if I knew I wouldn't have asked!
|
|
twostorms
off to a rocking start
Member since June 2005
Posts: 10
|
Post by twostorms on Jun 13, 2005 23:29:49 GMT -5
Nice lookin rocks. I have some of those Green one's too. Found them in Eastern Montana, I don't know what they are, Any ideas?
Bob
|
|
rollingstone
starting to spend too much on rocks
Member since July 2009
Posts: 236
|
Post by rollingstone on Jun 14, 2005 0:34:04 GMT -5
It seems like we've got this green to purple color range hence fluorite. I don't know, if I knew I wouldn't have asked! Should be really easy to tell -- fluorite is only mohs 4 and amethyst is mohs 7, so amethyst can scratch glass (mohs 5.5) but fluorite cannot. (Or conversely, glass will scratch fluorite but not amethyst.) |
|
|
|
Post by puppie96 on Jun 14, 2005 3:54:09 GMT -5
Yeah, RS, I was thinking about trying a scratch test, but I am not confident enough to trust my judgment of results. Those first couple loose crystals I picked up look the most like amethyst, but the other purple, I just don't know, the texture doesn't feel quite right. There is supposed to be amethyst in this state, certainly we have a ton of quartzy rocks, but a lengthy list of minerals (what this site is mainly known for) and rocks didn't have amethyst on it. What about orthoclase for some of them? People have been talking about it lately. There's also a bunch of milky white with jade green inclusions running through it, which is just turning up now as I'm busting it up and sticking it in the vibes.
Bob, I believe I picked up some green rocks like this in the west, too. I've got several seemingly distinct types here that all are green. In the west I was thinking maybe olivine? I have a really bright green piece I picked up along the Platte near Cody WY.
|
|
|
|
Post by puppie96 on Jun 14, 2005 3:58:35 GMT -5
RS, comparing with your photos of the amethyst rough, and I have tumbled amethyst too and have some rough around here, it is much more crystalline, sharp edges, shiny. The rocks in the photo are wet and really do look much duller dry and no shine at this point. I've got it tumbling all over the place, a vibe load and a couple of 3-lb barrels too, one of them is due to wash out tomorrow. This stuff is really fun to watch.
|
|
|
|
Post by creativeminded on Jun 14, 2005 8:11:49 GMT -5
The purple doesn't look crystaline enough to be amethyst, don't know what the green is.
Other than that they are beautiful.
Tami
|
|
|
|
Post by rockyraccoon on Jun 14, 2005 14:42:28 GMT -5
it doesn't look translucent like i would expect amethyst to look. is there a purple jasper?
kim
|
|
Nov 15, 2024 17:44:51 GMT -5
Nov 15, 2024 17:44:51 GMT -5
