I agree with Dichroic glass. I spent 15 years digging for Black Opal in
the Virgin Valley, NV, (Royal Peacock, Rainbow Ridge, and Bonanza) and
that does not look like black opal -- it looks like Dichroic glass. So
without seeing it in person, that's ...
That would be Nephrite Jade (formal name for Spinach Jade). Any high
value in this item would be more from the metal than the stone. Not to
say Nephrite is cheap, it isn't, but it is not as valuable as other
jades (e.g., jadeite). The metal does not ...
Without actually holding and touching it, if it is indeed light weight,
there's a good chance that it is jet. The streaks of brown could lead
one to think it is a black tiger eye, however, jet did occasionally have
some brown streaks visible in it. J...
