I bought this in a lot of tigers eye im not sure but I think 99% sure its Montana Moss Agate, Am I right? if so how much is it worth? I need to know cause I intend to make jewelry out of it. Polished Stone pyramid in shape, 20mm wide by 20mm long highest point 15mm thick down to 5mm. I do love it I think it has some unique marking these pictures really don't do it justice links are at the bottom
[http://i325.photobucket.com/albums/k370/shadowedone1987/CAM008241_zpsf1d4a48c.jpg] http://i325.photobucket.com/albums/k370/shadowedone1987/CAM008271_zpsa4796202.jpg http://i325.photobucket.com/albums/k370/shadowedone1987/CAM008311_zpsb80dbfbc.jpg http://i325.photobucket.com/albums/k370/shadowedone1987/CAM008221_zpsbbcb8e65.jpg
Looks like some sort of quartz/chalcedony with iron oxide staining giving it the reddish brown streak. These tumbled quartz/chalcedony's are fairly common and inexpensive, and don't maintain much value.