Australian BOULDER - EDELOPAL
BOULDER OPALS are so-called MATRIXOPALS - the EDELOPAL parts sit on - or in veins in an iron-containing clay-sandstone matrix.
Beautiful dark blue OPAL with, depending on the incidence of light, flashing "GREEN SPOTS" on and in the typical QUILPIE sandstone matrix.
QUILPIE OPAL FIELDS - QUEENSLAND - Australia
Weight: 330 g Dimensions: 12 x5 x 4 cm
Very GOOD ONLINE PRICE !