250 Miseellaneous Localities of Minerais. 
Chem. Characters. Effervesces strongly in the mine 
acids when in a fine powder. Nitric acid, with the assist- 
Form. - in large amorphous masses, + showy no tendency - 
towards nigatali ation: It is found’ in many places in 
Cummington, but principally near the meeting-house. It 
has been called by some mineralogists, red owide of manga- 
nese 5 by others, siliceous oxide of manganese, and gray oxide 
‘of manganese. All the specimens | have examined tae 
vesced in acids, both the red and gray varieties. It is 
mixed with masses and particles of quartz, magnetic Toh, 
and sometimes earb. lime. 
5. By George W. Benedict.* 
. Augtte or sahlite in er perfect orystalar-tramsluetar 
SE et patatlat to the bas 
Var. a. Grayish green ; sikbtesided with a variety of ter- 
minations ; of all sizes, from: a twentieth of an inch to 4 or 
6 inches in diameter. (Greenwood.) 
b. Dark bottle green; cight-sided with a diedral summit, 
ee the terminal edge usually replaced by a third plane. 
ound adhering to coccolite. (2 miles east of Greenwood.) 
. €. White ; abundant and large, but not so perfect as the 
others, being mostly exposed to the weather; white and oe 
erystals oceur om the same specimen.and sometimes the o 
pretending from the other. (About a mile east tof the one 
pon 
2. Cottolite, or coarsely grained sablite ; grains ‘foliated 
from the size of a pin-head to that of one inch in diameter— 
extremely beautiful. 
ar. ae Emerald green 3 in i abundance ; translucent 
ima high degree. (Green 
b. Leek green; bottle eesti "greenish and reddish white, 
of all shades and sizes. semitransparent, the white transparent 
fo lendent. (2 miles east of Greenwood.) 
ctynolite; dark green in perfect rhombic prisms sod 
dear terminations. (2 miles east of Greenwood.) 
of these minerals have been noticed in a former number, but 
Ay is yovac that a sugcines account of the whole may be interesting: 
Se ee ae 
