Opal identification and value
Downing, Paul B., Ph.D.
Opal identification and value / by Paul B. Downing - Tallahassee, FL : Majestic Press , 1992. - x, 210 p. : ill. (some col.) ; 24 cm.
Includes bibliographical references (p. [195]-200) and index.
9780962531125
95230997
Opals
553.8 DOW
Opal identification and value / by Paul B. Downing - Tallahassee, FL : Majestic Press , 1992. - x, 210 p. : ill. (some col.) ; 24 cm.
Includes bibliographical references (p. [195]-200) and index.
9780962531125
95230997
Opals
553.8 DOW