CALCITES OF NEW YORK HY 
NEW BALTIMORE, GREENE CO. 
Plate 28, figures 5, 6 
Crystallized calcite from the quarry of A. C.-Driscoll located at New 
Baltimore was obtained through the kindness of Mr H. S. Peck by whom 
it was collected in 1901 and who furnished several specimens for study. 
The crystals which measure in some instances 60 millimeters in 
diameter, are translucent and milky white in color. They represent two 
generations of crystal formation well defined and, from the simplicity of 
the combinations involved, easily interpreted. Calcite of the first genera- 
tion is crystallized in unmodified primary rhombohedrons p. (1011), the 
individuals averaging 15 millimeters in diameter. The crystals which 
represent the second generation of calcite are shown in figure 5. They are 
rhombohedral-scalenohedral in habit and present a combination of the 
negative rhombohedron 3. (0112) with the scalenohedron K: (2131), the 
forms being present in about equal developments. Included graphite in 
thin plates forms phantom crystals outlning the primitive rhombohedron 
of the first generation and in some instances imparting a dark gray color 
to this combination. On several specimens the superposition of the two 
generations shown in figure 6 was noted. In these instances the growth 
of the elements of the second generation are clearly defined by the graphite 
inclusions, entirely absent in the rhombohedron of the first generation. 
CATSKILL, GREENE CO. 
Plate 24, figures 1-5 
The types of calcite crystals from several localities in the vicinity of 
Catskill present such similarity of habit that it has been deemed advisable 
to here group them in order that they may be compared somewhat in detail. 
The writer is indebted to Mr George H. Chadwick for an excellent study 
series of crystals from Austin’s glen, 14 miles northwest of Catskill. 
Suites of calcite specimens were obtained for study from the quarry of 
the Alsen Cement Co., situated 6 miles south of Catskill and from the quarry 
of the Catskill Cement Co., situated at West Camp, about 7 miles south 
of Catskill, 
