1889. ] NEW YORK ACADEMY OF SCIENCES. 161 
surpassing beauty (aquamarines), especially the large gems from 
Stoneham, Maine. 
Garnets are represented in great variety and from numerous 
localities. One almandite crystal from Salida, Colorado, weighs 
fourteen pounds; it is well-formed but opaque. As gems, the 
most remarkable are the dark ruby-like pyropes, from Navajo 
Reservation, N. M., and the elegant spessartites, hyacinth-red, 
from Amelia C. H., Virginia. 
Tourmaline is also largely displayed, in almost all its varieties, 
particularly the richly-colored specimens from Auburn and 
Paris, Maine. The mingling of red, white, and green in some of 
the crystal-sections is very fine, as are also the cut stones of all 
these tints, besides lavender and indigo. 
The new and wholly American gem Hiddenite (‘‘lithia eme- 
rald”), a variety of spodumene from North Carolina, is of 
course included. Peridote appears also, some of the stones be- 
ing cut from the olivine inclusions in the meteorite of Carroll 
County, Kentucky. 
Quartz is represented by nearly a hundred entries in the 
catalogue. As gems, of course the first place belongs to the 
amethysts, of which there are many splendid crystallized speci- 
mens, and a number of cut stones of unsurpassed color and lustre. 
The latter are chiefly from Maine, Pennsylvania, and North 
Carolina. Hyaline quartz, citrine, smoky quartz (some of the 
latter making beautiful cut gems), rose-quartz, ete., represent 
the glassy varieties; while agates, chalcedonies, semi-opals, etc., 
are abundantly shown. The Oregon precious opal, just de- 
scribed, is among those here displayed. 
Quartz inclusions come next, and are a markedly interesting 
feature. The rutilated specimens from North Carolinaand Ver- 
mont are especially noteworthy. Byssolite, and hornblende, 
penetrating quartz, and forming the ‘‘ Thetis’ hair-stone” of 
Rhode Island, and stibnite similarly penetrating, from Nevada, 
may be mentioned; but the most remarkable specimens are prob- 
ably three from Yuma County, Arizona, in which the rare mine- 
ral Dumortierite (which occurs also on New York Island) has so 
thickly penetrated and so deeply colored a matrix of quartz as 
to present the appearance of fine blue lapis-lazuli. 
