Se 
Dr. Genth’s Contributions to Mineralogy. 23 
c. Tungstate of Copper (? and Lime); a new mineral.— 
? Amorphous ; massive and pulverulent ; sometimes (if massive) 
of the lustre of wax, but usually dull; color between siskin and 
pistachio- green. 
.B. in a tube gives water and blackens; on charcoal it fuses 
with intumescence easily to an iron-black slag, containing glob- 
ules of metallic copper; with fluxes it gives the reactions of cop- 
per and tungstic acid. Soluble in hydrochloric acid with separ- 
ation of tungstic acid ; the solution contains oxyd of copper and 
lime. I believe that the lime belongs to the constitution of this 
mineral, and is not owing to an admixture of Scheelite, with 
which it is associated, and that its composition is analogous to 
that of Volborthite, which it somewhat resembles, or a hydrated 
tungstate of copper and lime. 
d. Scheeletine-—Only one lump of quartz, which had a few 
crystals of this very rare mineral upon it, was found at the Wash- 
ington Mine, Davidson county, N. C. 
The crystals are quadratic octahedra P, some also in combina- 
tion with the plane oo P. The planes sometimes being curved, 
give the crystals a barley shaped appearance. . Color lavender 
blue and yellowish white ; lustre pearly—subadamantine ; brittle. 
- with microcosmic salt in the reducing flame gives an 
azure-blue glass; with carbonate of soda upon charcoal metallic 
fead. It is associated with pyromorphite, brown blende, iron pyr- 
ites, etc. 
; 14, Scorodite. 
Iam not aware that another locality has been observed in the 
U. S., except Edenville, N. Y. It occurs also, coating the cavi- 
ties of quartz and brown hematite, associated with gray copper, 
i spe iron pyrites at Geo. Luderick’s farm, Cabarrus coun- 
y, N.C, 
_ Itis found there in aggregations of greenish white, brownish 
and leek-green crystals. Only rarely they are large enongh to 
distinguish their form, which is a combination of the planes 
\ +O rae le. 
16. Wavellite. : 
This is another mineral of which only a few localities are re- 
corded in the United States. I,found it at the Washington Mine, 
Davidson county, N. G., in a talcose slate in globular concretions 
Witha ES DE SPT os iated witk tinolit , galena, blende, 
iron pyrites, silver, etc. 7 
Conzecrioy.—In the article, Owenite identical with Thurin- 
| this Journaf, last volume, p. 411, for Schmiedeberg read 
