Hi- Emery Liggett has written a book: “ALL ABOUT ANDAMOOKA MATRIX
OPAL”, which covers the questions of what is matrix opal, how to
cook it, how to cut it, how to price it and how to sell it, all
for $5.00 + $1.00 s&h. His address is Tops in Opals, 1851 W.
Ehringhaus St. #121, Elizabeth City, NC 27909-4555; phone
Administrator, Lapidary Digest Mail List