104. NEW YORK STATE MUSEUM 
found by Schnorr on calcite from Neumark" is present in small development. 
On one crystal of the habit shown in figure 3 small modifying planes of the 
scalenohedron K: (2131) were noted; the form is not repeated on any of the 
other crystals studied. 
Type II [fig. 4]. Crystals of type II were noted on one specimen, 
superposed upon a layer of dolomite which latter mineral was assumed to be 
of the same generation as the calcite of type I. They are simpler in habit 
than those of the preceding type, the dominant forms being the rhombo- 
hedron 8. (0112) and the prism b (1010) both developed as smooth bright 
planes. In the zone [1011.1120] the planes of x: (29.17.46.12) and a (1120) 
are quite rough and poorly defined. 
SUMMARY OF MEASURED AND CALCULATED ANGLES 
NO. OF 
LETTER ANGLE READINGS MEASURED CALCULATED 
o) 7 fo) i? 
b im. 1010 ; 4041 3 13 4g | ie 13 
9.2m. 0221 : 4041 1 57 De sr 5 
b 8. 1010 : 1012 2 G30 6 86s | 263 45 
bio.” 1010 : 202T 5 We. HO | OB 53 
ala 1120 : 4483 6 Te 3 ||) BB 42 
9.2 0221 : 4483 2 27 A Dy 15 
a: 1120 :8.8.16.3 6 1D ae Pn 23 
K::9. 2131 : 0221 2 Bee eed. Br 41 
K:: kK? FSi 8 SUA 1 eR) lb Bs 36 
Yu 29.17.46.12 : 46:17.29.12 3 41 9 | 40 57 
al: 1120 : 29.17.46.12 6 1 83 | 7s 49 
FAYETTEVILLE, ONONDAGA CO. 
Plate 17, figures 5, 6 
Calcite crystals occur on three specimens from the collection of the late 
John Gebhard jr, in the New York State Museum, which are labeled from 
Lafayetteville and were evidently collected at Fayetteville. The calcite 
occurs in thin veins and pockets in Niagara limestone, in most instances 
nearly filling the space left by the inclosing walls. The crystals are 
‘Schnorr. Wissensch. Beil. z, Programm d. Realgym. z. Zwickau. 1896. p. 16, 
