27 
—Among the specimens of vesuvian or idocrase, saloon, 
the more conspicuous are the large beautiful cry- 
stals (the unibinaire of Haiiy) discovered by Lax- 
mann on the banks of the Vilui in Kamschatka, im¬ 
bedded in a steatitic rock; those from Vesuvius, 
where this substance occurs accompanied by other 
volcanic ejections, have, in Italy, obtained the trivial 
names of volcanic gems, hyacinths and chrysolites. 
—In this case are also deposited, though not very 
closely allied to the garnet tribe, the staurolite 
(called grenatite in Switzerland) : besides several 
varieties of the cruciform and other crystals from 
Britany, we have modifications of the simple crystals 
in mica-slate from St. Gothard, accompanied by 
prisms of kyanite perfectly similar to those of the 
staurolite, and sometimes longitudinally grown to¬ 
gether with them. 
{Case 14.) The contents of this table-case 
are:— Chrysolite and olivine (peridot of Haiiy), 
the former crystallized, and in cut and polished 
pieces; the latter as grains, in basaltic rocks and se¬ 
parate : among these is some of the olivine-like sub¬ 
stance found in the cells of the Siberian meteoric 
iron {Case 32.)—^The substances which have been 
described under the names of thallite, arendalite, 
akantikone, delphinite, are Haiiy’s epidote^ and 
Werner’s pistacite: oi which several specimens are 
deposited in this case. Among these is also the vio¬ 
let manganesiferous epidote, referred by some to 
the ores of manganese.— Zdisite, — /Ixinite^ va¬ 
riously 
