of this substance 
is abstracted. from the “ First annual report on the geology of the 
State of New Hampshire,” by Dr. Cuartes T. Jackson. 
Be: SNLT. z Tits itis £13 
aa Chlorophyllite. —TI have given this name toa new mineral found near 
J. Neal’s mine in Unity. The name is derived from the Greek words 
signifying green folia, a name which is eminently characteristic of the 
species. It occurs in tabular, or short six sided prisms, arranged in folia 
or in columnar masses, resulting from the openness of its natural joints. 
The extremities of the prisms or tables are often covered with thin lay- 
ers of mica, which circumstance has caused some mineralogists to mis- 
take the true nature of the mineral. It cleaves readily into regular six 
sided prisms, with resplendent surfaces. On trying its hardness it was 
found to yield to the knife readily, but it scratches glass, and is harder 
than phosphate of lime. Its powder is of a very pale greenish white. 
Alone before the blowpipe it glazes slightly on the surface, but does not 
fuse ontarely-> - Itis fusible with carbonate of soda, with slow efferves- 
cence, an enamel, which becomes of a darker 
green in the reducing flame. Its speeific gravity is 2.705... 
“Mr. J. D. Whitney ateig zed a specimen of it i in my lahocannataeel 
obtained the following results. One hundred grains of the mineral con- 
sist of 
Mloeas - - - - 3.600 
Silic . . - » . 45.200 
Piss inss of sheet - _— 27.600 
Magnesia, - - - - 9.600 
Protoxide of iron, - - - 8.256 
- Manganese, = - : F - 4.100 
Traces of potash, and loss, = = - - 1.644 
100.000” 
I amindebted to Mr. B. Smuiman, Jr., one of the editors of this 
Journal, for a specimen of this mineral. In handing it to me, he 
remarked that it had a strong resemblance to the Haddam pinite. 
Its color is more bluish, however, than that of the Haddam 
Mineral. Its general lustre also’ is higher, but this is owing to 
Scales of what appears to be silvery mica traversing the chloro- 
phyllite, both in the direction of its horizontal and vertical cleav- 
ages. Its hexagonal cleavage is remarkably distinct. It still far- 
ther differs from the Haddam pinite in proms points where 
the iolite remains unchanged, not only its usual blue 
‘color, but its chardeteristic hardness and vitreous lustre. 
