Mineralogy and Geology. 265 
and is a variety of rhodonite. It is described as transparent. Com- 
position: _ : 
Si n Fe Ca Mg 
46°46 41°88 3°31 8:13 0°91==100°69 
Ox. 2414 9°40 0-73 2°31 0°35 
Hence the formula (Mn, Fe, Ga)* Sit. 
Stratopeite occurs in the same iron mine. It is pitch-black, and 
ule. With borax on platinum or with soda, a strong manganese reac- 
tion. With muriatic acid dissolves, giving out much chlorine and leav- 
ing a silica skeleton. Composition : 
Si Mo Fe Mg Tf 
35-43 32°41 10°27 8:04 13°75 
Ox. 18°41 9°83 30 316 12°22 
This affords the formula Mg? Si? + 4(Mn, #e) Si+ 12H. 
Stratopeite approaches most nearly neolokite, whose formula is 
Mg Si+ 44m + ¥e) Si+ 8H, 
and specific gravity 2°70. A mineral from Wittinge in Finland, called 
wittingite is also related to it, its formula being 2(#e-+ 9¥Mn) Si-+ 3H, and 
Specific gravity 2°71—2-76. 
Chrismatine, a new mineral resin; German, (Deutsche Geol. Zeits., 
i, 40, and Leonh. u. Bronn’s N. Jahrb., 1851, 853.)—This resin occurs in 
a red argillaceous sandstone of the coal formation at Wettin near Halle. 
lor oil-green to yellowish; translucent to semi-translucent ; shining. 
Unchanged at 16 to 20° R., but softens at 10 to 12° R. Burns with 
flame, without smell. 
Stanniferous pyrites or Ballesterosite—This mineral, from Galicia, 
described Schulz and Paillette, (Bull. Geol. de France, vii, 21,) isa 
pyrites in cubes containing traces of zinc and tin. It was named after 
pez Ballesteros. G.=4°75—4-90. 
Chalcodite ; C. U. Suerarp, (from Shepard’s Min. 3d edit., p. 153.) 
ts 103-5, In globules, stellar groups and thin scales, or granular. 
Blackish green, to yellowish brown, with a bronze lustre. Form, rhombo- 
dral? The colu i 
gh paler. Translucent. Sectile Lamin e 
Yields water abundantly in a closed tube ; and the darker varieties 
change to arcoal, fuses to a black glass, which 
&ppears to be a hydrated silicate of protoxyd of iron and magnesia ; con- 
taining, in the light brown varieties, an intermixture of perox. iro. Found 
with red iron ore, at the Sterling iron mine, in Antwerp, Jefferson county, 
N.Y.4 aed in nattied from yalnodns, like brass, from its bronze-like lustre. 
[The mineral externally resembles cacoxene, to which species it was 
ferr An analysis of it is much needed. 
‘anthosiderite, a new mineral from Thitringer Wald; E. E. 
Scummp, (Pogg. Ann., Ixxxiv, 495.)—The xanthosiderite is found with 
Secowp Serres, Vol. XIV, No. 41.—Sept, 1852. 34 
