345 
TIN. 
I do & ot know that any specimen of this very useful 
metal, has yet been found in the United States. To fa- 
cilitate the search after it, I shall state its geological, as 
well as mineralogical characters. This metal and antimo- 
ny, being the only two metals of which we stand in need, 
that are furnished principally by Great Britain, I shall be 
excused, I hope, for dwelling upon it more than other- 
wise would be necessary. 
Tin is found, 1st. native ; a scarce form of appear- 
ance. 2ly, Sulphuretted ; tin pyrites. 3iy, As an oxyd, 
the common Cbmish ore. Tin Stone, 
Werner’s account of the age of metals, I shall insert at 
the end of this article. 
The first part of this article, relating to the Gres of Tin, 
I take from Jamieson ; the next from Aikin ; the chief 
part of the remainder from Watson, Bishop of Landaff, 
TIN GENUS. 
FIRST SPECIES. 
Tin-Pyrites. Sulphuret of Tin.. 
Z innkies.— 
i ■ • 
Id. Wid. s. 875.— -Tin Pyrites, Kirw, voL ii. p. 200.— Zinnldes, 
Emm. 2. b. s. 418.*— Elaine sulphure, Lam. t. 1. p. 279. -—Id. 
Hauy , t. 4. p. 154.— La Pyrite d’Etain, cm I’Etain pyriteux. 
* och . t. 2, p. 332,— Zinnkies, Reuss , 4. b. s. 286. 
External Characters . 
Colow intermediate between steel-grey and brass -Wh 
low, but usually more inclined to the first* 
Occurs massive and disseminated. 
