Geology and Mineralogy. 271 
Gr u e 
8°31 15°85 60°87 10°80 1°10 1°10=98°03 
Nordeaieia aa += 8°31. 1691. O1°16. Ti64... 108. 21020018 
both leading to the formula 20u* 6 +5Pb?Gr+ 2H. 
11. Phosphorchromite—Hermann (J. f. pr. Ch., IL, i, 450) thus 
names a chromophosphate of lead ed sopper from Beresofsk. It 
occurs concretionary, crystalline or massive within, with a black- 
ish-green Golor, pistachio-green streak, H. =3, 3. ==5°80, An anal- 
ysis afforde 
B 9-94 Or 1013 Pp 68-33 Cu736 Fe 2380 H 1-16=99-72, 
leading to the formula 30wP+5Pb? a 
Vanadiolite of Hermann (J. f. pr. Chem., ib. 445) occurs in 
small crystals, partly in druses, of : ee or blackish-green color 
and gray-green streak ; dark emerald-green color and transparent, 
in small grains; of str rong vitreous luster, with G.= -B. 
melts on the edges to a black bl lebby slag. His stale afforded 
Si 15-61 V44:85 411-10 Fel-40 Mg 2-61 Oa 34-43=100 
and he regards it as a subvanadate combined with augite like the 
Lavroffite of the same locality, St eh near Lake Baikal. He 
— the ete 3RSi+ Cas (VO4+2V: 
Wolframite.—Descloizeaux hia in 1850 (Ann. Ch. 
han, Il, sill) ‘that Wolfram was oblique rhombic in erystalli- 
afte 
zation, some measurements of crystals. He has rec aie: | 
confirmed this ecddltinice (ib., IV, xix, 168, Feb. 1870) by bot 
optical and crystallographic observatio e finds the obliquity 
W 1432 Fe211 Mn 20-90 Ca 1-30 chiapas" 
aerecthg nearly with Hubnerite, of Nevada. G.= 
. Namaqualite, a new ore of Copper; by Prof, Chit (J. 
Ch, “os i Me iagialiod 5, Bs named after the tig in 
e 
analyses : 
Si F.3| Cu Mg Ca H 
2°25 15°29 44°74 342 2°01 32°38=100-09. 
xygen ratio for the protoxyds, alumina and water is 4:3: 11. 
Prof. Church remarks that its crystallized condition, and its definite 
and constant composition s show that it is a true species; and the 
presence of a sesquioxyd that it is related in composition Fes hydro- 
taleite pa pyroaurite. 
Contributions to the Mineralogy of Victoria ; by G. H. 8. 
Unricu, F.G.8. 32 pp. 8vo. Melbourne, 1870. (Reprinted from 
