Calcite from the Portland Mine, Arizona. Nice large single crystal, that almost looks like quartz, with a very unique habit. Water clear with wonderful translucence and luster. $75

This is a very nice opal on matrix from a rare locality! From Spencer Idaho; this area produces some really amazing opal! I got this piece a little wet to show off the colors and the flash a little better. But amazing coverage of color all over the piece! $90!