Stone ID?

[Cev'aq]

Could someone help me identify this stone?

It's rather common in the area (panhandle of OK), and when it's on the thin side, you can see light through it. Usually I find them in smaller sizes - 1 to 2 inches across or so - but this one's approximately the same size as in the attached photo.

[Cev'aq]

:bumpsmili

[MoonRaven]

Without being able to have a look at it firsthand, I'd say it was some kind of quartz.

[Pesha]

It looks like calcite to me. I used to have soe calcite stones given to me by my exboyfriend, who found then actually in the pan handle area of OK. He used to go crystal hunting there. I could be wrong, but calcite would be my guess.
BB
D'S...also known as...

[Demeter]

If it's common, see if you can find one broken, or one that you can break. See how the fracture lines of the crystals run. If it makes a rhomboid fracture, it's calcite. If it sheets off, it's mica. If it doesn't fracture cleanly, it's probably quartz or possibly agate (that can be translucent).

[Cev'aq]

Thanks for the help! :)

[Partly Cloudy]

Personally, I think it looks like Quartz from the photo. It's common right where I live (in Australia) and I find it in the same sizes you've described. I think it's pretty common in a lot of places, actually.

~Partly Cloudy

[serenarian]

I thought calcite when I saw it. Now I'm not sure. The lines in it resemble the ones in my calcite, so I don't know - I'm no geologist, unfortunately.

[WtchyChick13]

It looks to be quartz. Quartz when it is forming will change with temperatures. The colder it is while it is forming, the cloudier the stone.

The kind you have there looks like what they commonly (and unfortunately) use to line driveways with. My neighbors had a "gravel" driveway and the stones were actually all different kinds of quartz--rose, tan, white and clear! Poor little quartz. :(

:lol:

[SylverStar]

I'm not sure what it is, but I'm pretty sure it's not mica

[Citana]

i would have to say quartz, like the others. i have found so many that look almost exactly like that all over the place (Oregon and California. as you can see i travel a lot). very common

[Calzaer]

It's most likely quartz. To check and see if it's calcite, try to scratch it with a knife blade or masonry nail. If you can make a good scratch, it's calcite (hardness 3). If not, it's quartz (hardness 7). A masonry nail has a hardness of 5. Calcite also bubbles in dilute HCl, but I doubt you have easy access to hydrochloric acid.

But judging just from the greasy lustre, it's quartz.

(I was going to be a highschool Earth Science teacher until I changed my major)

[Rick]

It's called selenite... I think it's in the mica family. It's quite common across the northwest part of Oklahoma. Before glass was readily available on the prairies, selenite was used to make window panes (called isenglass). It's all over the Glass Mountains State Park that's just a ways east of the Panhandle (I picked up quite a bit of it there, when I wasn't dodging rattlesnakes).

[Cev'aq]

It's not selenite... I have plenty of selenite crystals from a time when I lived quite near the salt plains. :)