Mineralogy and Geology. 109 
age, it shows a low degree of brownish-red translucency ; streak brown- 
ish-red ; hardness 40, or that of fluor ; specific gravity, according to 
von Hauer, 3-463. 
In a glass tube before the blowpipe, an abundance of sulphur is given 
off, leaving a green residue soluble in acids with a disengagement o 
sulphuretted hydrogen. This residue when treated alone becomes su- 
perficially brown again, before the blowpipe. A fragment treated with 
salt of phosphorus does not (as is also true of manganese-blende from 
Nagyag) become of a violet color in the outer flame, until the whole 
of the sulphuret of manganese is decomposed. Upon platina foil with 
soda, it gives the reaction of manganese. In composition, it would 
guided by its isomorphism with iron pyrites, which is expressed by the 
formula Fe 82, we may infer that the formula of Hauerite is Mn S?. 
_ According to the analysis of W. Adolphus Patera, the composition of 
the substance in question is as follows: sulphur 53°64, manganese 
42:97, iron 1°80, silica 1:20 = 99°11, calculating the iron as sulphu- 
ret of iron, and deducting it, this would give, in one hundred parts, 
Analysis. Calculation. 
Sulphur, ‘801 53'7 
Manganese, 45°198 46'3 
_ It is remarkable that the form of the only sulphuret of manganese, 
with which we were hitherto acquainted, (mang ese-blende, alaban- 
dine,) and whose composition is " ld likewise belong to the 
tessular system, and also show distinct cleavage parallel to the faces, of 
the cube. Alabandine, however, is more semi-metallic in lustre, has a 
green streak, and gives off no sulphur in a glass tube before the 
investigation then established the distinctness of this beautiful species 
beyond a doubt. ; ; 
-Hauerite occurs at the sulphur-pits at Kalinka near Vegles, in the 
neighborhood of Alisohl in Hungary. The erystals are met with in clay 
and in gypsum, occasionally associated with sulphur of a fine yellow 
tint, which is nearly transparent. They occur either insulated or 
grouped together like certain varieties of globular iron pyrites. 
he name proposed was given this species as an acknowledgment 
ie 
Was first noticed by Mr. C. v. Adler, at that time employed at Kalinka, 
and from this gentleman several ersons received specimens. Hauerite 
will perhaps always remain a mineralogical rarity. 
t looks forward with pleasure to the receipt of further specimens 
ed by government, that the railway system be ex i 
beg i. don the capital invested, any in- 
