I have several colors of agate I have dug up on blm. I’m wondering the value. This one is green with blueish opal on the outside 2”x 3” translucent green in the middle it is from a seam or vein
Hi Kelly! Welcome to the forum!
Nice pictures! It looks like green chalcedony, also called green jasper. Conchoidal fractures and microcrystaline grain are common features.
Hardness: 6.5 - 7 hardness
Density: 2.58 - 2.91 g/cm3
Price will be fairly low. Cabochons can fetch a few dollars based on size. Really nice colored ones a bit more.
Can you describe the area where it was found? BLM is everywhere… 
-Troy
