Bob Whitmore collected this in 1964, and although I have paid attention to material from this mine since I was a kid myself, some 25 years, I have not owned a better one in all that time. It is a VIVID, GEMMY green color, almost neon in intensity, and the crystals sparkle as if they were greased with oil. They are comparable in intense color to the rare green crystals fro mMalmberget, but even more jewel-like and sparkling. This is probably pricey, yes, but it is REALLY that good: I know this beyond my hunch above because I showed it to a number of folks who were shocked at the quality, people who had lived or dug in Bancroft area for 30 years and more.