CALCITES OF NEW YORK 103 
SARATOGA, SARATOGA CO. 
Plate 17, figures 3, 4 
Crystallized calcite was obtained from a limestone quarry operated 
by W. H. Gailor and situated 4 mile north of Saratoga Springs. The 
calcite here occurs in irregular veins and cavities in a silicious, dolomitic 
limestone of Beekmantown formation, associated with dolomite and quartz 
in well developed crystals. The calcite crystals range in size from 3 to 25 
millimeters in diameter. They are essentially of two crystallographic 
types genetically coincident with the dolomite and quartz. The genetic 
interrelation of the two types is not well defined although the crystals of 
type II appear to mark a somewhat later stage of deposition than those of 
yest: 
TypeI [fig. 3]. The crystals of this type are rhombohedral-pyramidal 
in habit, the dominant form in both combinations being the fundamental 
rhombohedron p. (1011), present as a series of rough and dull planes yielding 
very poor reflections. The fates in the rhombohedral zone, other than p., 
are sharp and well defined, specially those of the prism b (1010) which 
were used as reference points in this zone. The positive rhombohedron 
m. (4041) and the negative rhombohedrons 6.(0112) and ¢. (0221) are 
present, the latter as a series of sharp, brilliant but very narrow 
faces. 
The zone of the second order pyramids [0001.1120] is considerably 
developed in the combination shown in figure 3 and is characterized by a 
vicinal rounding of the pyramidal edges similar to that frequently noted in 
connection with the zone [1011.1120]. The bright points in this zone 
correspond to the second order pyramids « (4483) and 7 (8.8.16.3). The 
zonal relations aided in the identifying of these two forms; the polar edges of 
a are truncated by ¢. (0221) in the negative sextants and those of y are 
truncated by m. in the positive sextants, the reflections in both instances 
falling well in zone. : 
The rare positive scalenohedron x: (29.17.46.12) in the zone [1011.1120] 
