COKUNDUM IN UNITED STATES. 141 
This list is probably not (•()iii])l('te, but it represents all those k)cal- 
it ies that I lia\'e visited and those of which an authenticated record 
( ould be obtained. 
ALABAMA.'' 
J>i((lle}/r'dle. — Between this town and Perry Mills, Tallapoosa 
County, corundum has l)een picked \\\) at a number of places in the 
soil, but none has been found in place. Peridotite rocks have been 
fonnd in the vicinity, and it is not at all improbable that the corun- 
dum was derived from these rocks. 
llano re r. — (\)rundum has been found si)arin<>ly in Coosa County 
in the vicinity of this towai. 
(ALT FORK I A. 
M(ui(]<)tr VaUvii. — -Near this town corundum has been found in 
])lumasite. (vSee p. 12). 
PluiiKis (U}uiity. — (See j). 12.) 
l.o.s AiK/clcs (^oKiitij. — Corundum is reported as having Ijeen fonnd 
in the drift of San Francisquito Pass.'' 
conoKADo. 
Cdin/oii. — In a granitic rock. (See p. ID.) 
(lui-lfcc Count [I . — Corundum crystals have been found at the Calu- 
met iron mines in the mica-schisti-i at their contact with intrusive 
dikes of diorite. Mr. R. C. Hills, geologist to the Colorado Fuel and 
Iron Company, writes that the ore occurs in a band of rock () inches 
U) 2 feet thick that has been followed for a distance of 500 feet, and 
that it averages 10 jx^r cent of corundum. 
Saxon Mountain:' — Corundum has l)een found by Mr. F. A. Max- 
well on Saxon Mountain, near Georgetown, Clear Creek County. 
CONNECTICUT. 
Barhhamsted. — Near this town, in Litchfield Comity, corundum 
has recently been discovered. (See p. 132.) 
Litch-field. — Corundum was found here associated with talc and 
])yrite in a mass of blue cyanite. Only surface specimens were 
found. 
Norwich. — In the vicinity of this place corundnm was found spar- 
ingly wdth sillimanite. 
« Rept. (^eol. Survey Alabama, 1875, p. 85. 
"Dana's Mineralogy, 0th ed., 1902, p. 213. 
'■ Min. and Sci. Press, September, 1903. 
