DEPARTMENT OF GEOLOGY 
71 
tal slabs, mounted in jeweled and enameled silver; style, seven- 
teenth century; original in Ambras collection, Vienna. 
Screen, “The Finding of Moses,” engraved on a thin sec- 
tion of rock crystal 93-5 inches in diameter, believed to be the 
largest section of its kind in existence. 
Tazza of quartz, engraved to represent a marine festival. 
Large crystal sphere, from the summit of Mt. Antero, Colo- 
rado, one of the largest crystal balls ever polished. 
A group of crystal balls mounted on a stand of metallic 
leaves, the whole representing fruit and foliage. 
A quartz crystal, scratched so as to show the method of 
slicing quartz in the manufacture of spectacle lenses. 
A series of fourteen specimens of crystal intended to show 
the various steps in the cutting of a brilliant. 
Fine examples of cut crystal from Asiatic Russia; seal hav- 
ing a Turkish inscription on one end and a Russian on the oppo- 
site; a frame of the seventeenth century; chandelier pendant, 
eighteenth century, French cutting; a head of a horse and a 
bust of Ivan Tourgenieff. 
A cut crystal, from Mexico, the finest specimen of aborig- 
inal work of this kind ever found in that country . 
Case 5. — Zircons of various colors. A dark golden smoke 
color, round brilliant, weight 41 5-8 karats, Kandy, Ceylon. 
Also one weighing 46 1-2 karats from same place. 
Tourmalines of many colors, from Brazil and Maine. 
Fine specimens of phenacite from the Ural mountains and 
Colorado. 
Rubellites from Brazil, one weighing 21 karats. 
Green garnets, Ural cutting, cushion shaped. 
Precious garnets: Navajo Nation, New Mexico, Bohemia, 
and Kimberley, South Africa. 
Rare specimens of peridot from the Levant. 
Rare specimens of almandite. 
Essonites from Maine and Ceylon. 
Spodumene, yellow, Minas-Geraes, Brazil. 
Carbuncles, Sirian, Pegu, Burma. 
Spessartites from Virginia. 
Case 6. — Rock crystal from Madagascar, Brazil, and Ural 
mountains. A beautiful collection of the doubly-terminated 
quartz crystals, loose and in the matrix, from Herkimer county. 
New York, commonly known as Little Falls diamonds. 
