86* 
FOREIGN OREa > 
716. Native Platinum. 
Mines of Taguil, Ural Moun¬ 
tains. 
Nos. 714 to 716 presented by the Im¬ 
perial Mining Institute of Russia. 
717. Native Platinum. 
Taguil, near the Ural Mountains, 
Siberia. 
Presented by Baron A. de Mayendorff. 
718. Native Platinum. 
JVijnei Taguil, Siberia. 
719. Native Platinum. 
South America. 
Presented by G. B. Greenough, F.E.S. 
720. Iridosmine, or Osmiri- 
dium {Iridium and Osmium'). 
JVijnei Taguil, Siberia. 
721. Iridosmine, occurriogwitli 
Alluvial Gold. 
California. 
Presented by Professor Graham, P.R.S., 
Master of the Mint. 
Ores of Tellurium. 
The minerals of Tellurium are exceedingly rare, being limited 
throughout the world to a very few localities, of which the principal is 
the South-western part of Transylvania. ' They are extensively mined 
for there in consequence of the large proportion of gold which they 
contain. 
722. Native Tellurium. 
~ Presented by G. B. Greenough, 
F.R.S. 
From the only locality, a now aban¬ 
doned mine near Zalathna, Tran¬ 
sylvania. 
723 & 724. Black Tellurium, 
Nagyagite, or Blattererz {Tellu- 
ride of Lead and Gold). 
Nagyag, Transylvania. 
725 & 726. White Tellurium, 
Graphic Tellurium, or Sylvanite 
( Telluride of Silver and Gold). 
Offenbanya, Translyvania. 
Ores of Mercury. 
The total absence, as far as hitherto known, of all the ores of 
Mercury in Great Britain, renders it the more needful to exhibit 
a series of them from foreign countries. Several continental and 
American localities are represented by the following specimens, but 
besides the most noted mines of Almaden in Spain, Idria in Austria, 
and New Almaden in California, few of the other places have yielded 
notable quantities. 
Shelf V. 
727. Native Mercury. 
Mine Vertrauen zu Gott, Lands- 
berg, Germany. 
Presented by the German Mining 
Company. 
728, 729, & 730. Native Amal¬ 
gam {Silver and Mercury). 
Moschel, Middle Rhine, Germany. 
731. Onofrite {Selenide of 
Mercury). 
Tilkerode, Hartz. 
732. Native Calomel {Chlo¬ 
ride of Mercury). 
Landsberg. Bavaria. 
732 a. PIoRN Quicksilver 
( Chloride of A/crcw?’?/), with Native 
Mercury and Cinnabar. 
iMoschel Landsberg, Deux Fonts, 
or Zweibriicken, Bavaria. 
733. Cinnabar {Sulphide of 
Mercury), in a Micaceous Slate. 
Ripa, Tuscany. 
734. Cinnabar, iu a vein of 
calcareous spar. 
Tuscany. 
735. Cinnabar, occurring as a 
rolled pebble. 
Tuscany. 
736. Cinnabar. 
Castellazzare, Tuscany. 
