. Bulletin - New York State Museum. Science. GUIDE TO THE MIXERALOG10 COLLECTIONS 105. in the direction of the orthoaxis producing forms of horizontal prismatic habit (fig. 227). These pass into acicular tonus, stri- ated in the direction of elongation, columnar, parallel or diver- gent, and fibrous masses (pi. 31J. It also occurs coarse to fine granular. The luster is vitreous, the crystals sharp and with bril- liantly reflecting faces; the color is com- monly some shade of pistachio-green, often nearly black, also yellowish green, gray or brown. Epidote occurs in metamorphic rocks of the old
. Bulletin - New York State Museum. Science. GUIDE TO THE MIXERALOG10 COLLECTIONS 105. in the direction of the orthoaxis producing forms of horizontal prismatic habit (fig. 227). These pass into acicular tonus, stri- ated in the direction of elongation, columnar, parallel or diver- gent, and fibrous masses (pi. 31J. It also occurs coarse to fine granular. The luster is vitreous, the crystals sharp and with bril- liantly reflecting faces; the color is com- monly some shade of pistachio-green, often nearly black, also yellowish green, gray or brown. Epidote occurs in metamorphic rocks of the older formations, in gneiss, mica and hornblende schists. It is found associated with quartz, the feldspars, actinolite and minerals of the chlorite group. It is common in Xew England and in many of the west ern states. Handsome specimens have been found in Orange and Putnam counties, X. Y. Axinite H,Cai(B0)Al,(Si04)r,( ?) Axinite is an aluminium and calcium borosilicate with some of the calcium replaced by iron and manganese. It occurs in sharp triclinic crystals with acute edges (fig. 228), clove-brown, bluish or yellow in color and in lamellar and curved lamellar masses. The luster is highly Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original New York State Museum; New York State Museum. Albany : New York State Education Dept
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectscience, bookyear1887
