232 TRANSACTIONS OF THE [MAY 7, 
Analcite. <A few crystals at same locality. 
Chabazite. In yellow and chocolate-brown crystals 4 to $ 
inch in diameter, Fourth avenue and 96th street. 
Ochery yellow. Large crystals, ? inch in diameter, also, violet 
and fine yellow varieties, 45th and 46th streets and First and 
Second avenues. 
Reddish-brown crystals, 43d street, E. R. 
Phacolite. Three specimens of this variety of chabazite,. 
showing well-defined crystals, one yellow, the others brown, 
appeared at 43d street, E. R. 
Harmotome. This, one of our most appreciated local 
minerals, was discovered by the writer during the Harlem rail- 
road improvements in the year 1871. The crystals (compound), 
averaging one-half an inch in length, were of two colors, yellow 
and brown. 
Some of the specimens were of remarkable beauty, 
excelled by none perhaps in the United States. They have 
found their way into many of the most important collections 
of the country. 
A deep cinnamon colored variety appeared at 43d street, EH. R. 
Here the cruciform crystals were occasionally observed. Some 
of these were one inch in length. 
These are the only localities in the city where this mineral 
was obtained. The writer has added to his collection further 
specimens from Tarrytown, some of which are white, others 
light cinnamon, red and pearl gray in color. 
Heulandite. Abundant at the Fourth avenue excavations, 
1872. Also at 43d street, E. R. A cream-colored variety at 
46th street and Second avenue. 
Stilbite. Seven localities on New York island have yielded 
this interesting zeolite, chief of which is Harlem Tunnel and 
vicinity, where the mineral, associated with heulandite, har- 
motome, and chabazite, appeared in a series of pockets and vein, 
running northeastward from Fourth avenue to 102d street near 
Lexington avenue. The stilbite, usually of a honey-yellow color, 
appeared in columnar, scopiform, sheaf-like, and radiated 
masses, but rarely, as at Bergen Hill, in lamellar sections of 
crystals. Some of the globular groups approached a bright red 
in color, affording a pleasing contrast to the yellow hue of 
simpler forms adjacent. Among radiated forms one specimen 
is nearly fifteen inches square, containing twenty-six rosettes. 
At 45th street, between First and Second avenues, a second 
prolific locality afforded plates of stilbite two feet square. 
