Faceted, egg-shaped, 7000-carat rock crystal from Brazil. The gold stand is inset mostly with Montana sapphires. The gem was cut and the stand was designed and constructed by Capt. John Sinkankas of California. (7¼ inches high in all.)

Gems
in the
SMITHSONIAN
INSTITUTION

by PAUL E. DESAUTELS

Associate Curator
Division of Mineralogy

WASHINGTON, D. C.
1965

SMITHSONIAN
INSTITUTION
PUBLICATION
No. 4608

LIBRARY OF CONGRESS
Card No. 65-60068

CONTENTS