16 
saloon. ( Cases b, 4.) Among the many varieties of spinet 
Nat HtsTi we laave the ceylonite or pleonaste, by some still con¬ 
sidered as a distinct species, and the blue spinel 
from Aker in Siidermania. Another substance 
nearly related to this species, is the automolite from 
Fahlun in Sweden, being the spinelle zincifere of 
Haiiy.—Among the specimens of chrysoberyl or 
cyihophane may be noticed the North American va¬ 
riety, in its matrix of quartz and feldspar, with 
small trapezoidal garnets.— Kyanite or disth&ne, 
massive, in separate crystals and imbedded, with 
grenatite, &c.: also in small polished pieces, which 
are sometimes mistaken for sapphires.—A series of 
crystals of Brasilian, Saxon, and Siberian topazes , 
among which there are some new modifications; 
Saxon varieties, imbedded in the topaz rock, an ag¬ 
gregate of topaz, shorl, quartz, and sometimes mica. 
—Emerald and beryl: several crystals of the South 
American emerald, insulated and in their matrix ; 
emeralds from Salzburg. Beryls of various co¬ 
lours, the most common of which is the variety 
called aqua-marine: the fine groups of these, found 
in ferruginous loam at Nerchinsk and Adontche- 
long in Siberia, are very remarkable; large crystals 
of emerald or beryl from Limoges in France, and 
from Rabenstein in Bavaria, the latter accompanied 
by tantaiite.—Near the beryl (though perhaps not 
very nearly related to it) is placed the euclase , a 
rare crystallised mineral substance, discovered by 
Dombey, 
