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Miscellaneous Localities of Minerals. ~ 258 
4. Hornblende. 
Var. a. Crystallized i in cube, risms with diedral sum- 
mits—but few specimens found. Spicy 6 
b. Carinthin—not abundant. (iieares 
c. Granular—very handsome. (Betwéen’ the two ee) 
5. Mica. Dark bottle green, and finely crystallized. The 
crystals lie contiguous to each other in a vein a foot wide, 
presenting a tessellated appearance. Between the sides and 
ends of the crystals there is generally a thin layer of prisma- 
tic filaments aly removed by the ails The surfaces thus 
exhibited are sufficiently smooth for the reflective goniome- 
ter. On rae the outer pellicle, a dendritic iridescence 
of great bexuty is usually exhibited. I have never seen se 
poe and beautiful crystals of mica from any other loca- 
iG The following forms occur; 
ar A doubly oblique rhombic prism from half an 
BS. to 4 or 6 inches in diameter, and from a third of ae 
inch to four inches high. This is the common form 
b. The same with the two acute angles replaced by tri- 
angular planes parallel to each other and forming obtuse. 
angles with their bases respectively. The bases are thus 
yg hexagonal; but the crystal is not a hexaedral 
oe. Dilanglar pyramids—rare. 
~d. Oblique four-sided prisms with rectangular bases— 
rarest of all. (Greenwood.) 
careous spar, Flesh coloured; containing small 
white and green crystals of augite, and mica; in many phe? 
—very handsome between the two ponds. 
7. Ceylantte ; in small octohedrons, sometimes macled— 
occasionally in rhomboids with brucite in carbouate of lime. 
(Between the two ponds. 
8. 
Var. a. Dark brows, in crystals, laminated and granular 
masses sO enorme in the white augite as to give it a por- 
phy ritic appearanc 
b. Light Brew occurs abundantly about 11 miles east. of 
the tere ponds, on the road to West Point. It is disseminated 
in a beautiful green sahlite, generally delicately laminated — 
laminae sometimes so s mall and irregular that it appears gra- 
nular. | have one specimen welelitne about a pound —it i is 
made up of the granular and laminated, and contains also dis- 
“tinet erystals—obligue four-sided prisms with the two obtusé 
