292 
GEOLOGY OF NORTH CAROLINA. 
ably an artificial product resulting from the simultaneous amalgamation 
of gold and tetradymite.” 
COBALT AND NICKEL. 
“ Small quantities of these two metals have been observed in the manga- 
nese gossans of several mines in Gaston county, but thus far no regular 
workable deposits have been found.” 
MANGANESE. 
Pyrolusite, psilomelane and wad are found in small quantities in many 
places in this state, but no where in abundance, so far as known. They 
are generally associated with iron, gold and silver ores. There is a very 
promising vein, or bed of psilomelane in Caldwell county, 5 miles west 
of Lenoir. It is found in irregular and rounded masses, embedded in 
light-colored gneissic slates, some of the masses being 10, 15 and 20 inches 
thick, and occupying a breadth of three or four feet of the strata. There 
is also a small seam in the town of Danbury, Stokes county, and lamina- 
ted masses of 2 to 1 inch thick occur in the Buekhorn iron ore-beds, and 
there are hand specimens in the Museum from Nash county and several 
other points. 
A specimen of manganese ore recently sent from Jackson county gives 
Silica, 12.25 
Alumina and Sesquiox of Iron, 11.10 
Protosesquiox of Manganese, 74.45 
It is probably braunite, variety marceline. A similar specimen from 
Chatham was probably the same mineral. Manganese is found associated 
with the iron ores in various parts of the state, as has been seen. At 
Buekhorn it is found as a silicate and probably in the form of Knebelite, 
as stated in another connection. Beds of Manganese garnet are of com- 
mon occurrence and often of great thickness. There is a series of such 
beds associated with the King’s Mountain slates of Gaston, Lincoln and 
Catawba, which are superficially changed to black oxide. A slaty speci- 
men from Major Graham’s place gave 
Silica, 47.93 
Protoxide of Manganese, 12.86 
Binoxide “ “ — 5.60 
Alumina and Sesquiox. of Iron, 30.44 
