RHODONITE, RHODOGHEOSITE, AND COTICULE. 173 



a line a tew feet east was pink from the intermixture of rhodonite and 

 rhodoehrosite. Ihiienite and tluorite also occur here in quartz veins near the 

 ])oint where, a few rods west up tiie hillside, a new shaft lias l)een sunk and 

 has exposed nuich beautiful corruf^ated hematite-schist. 



A half mile farther north on the vein, at Mr. Cressy's "first ])asture," 

 the excavations have so exposed the vein as to throw much li^^ht upon its 

 character and origin. The following- section is exposed, conuncnciug on 

 the east : 



Seciinn in West Hairlcy. 



1. Dark-greeu ankerite-cblorite-scbist (Hawley sdiist). 



13. Compact vein quartz, tiuted tleshcolor from rhodonite, or rusted to deep 

 brown and black; vertically color banded, and with very regular rhombic Jointing, 

 3 feet. 



3. Solid, rusty, granular magnetite, 3-0 inches. 



4. Granular quartz full of white i|uartz veins, carrying ilmenite, which seems to 

 be the sericite-schist crushed, deprived of its mica, and recemeuted, 18 feet. 



5. Sericite-schist full of scales of hematite replacing the mica and tine-granular 

 rhodonite, 4 feet. 



0. Sericite-schist (Savoy schist). 



Everything indicates the crushing of a witle hodv of the rock and 

 the deposition of magnetite along the main fissure, while manganese was 

 carried far out from the fissure into the crushed rock, with much vein quartz 

 and ilmenite; and still farther away from the main fissure, and perhaps 

 at a lower temperature, hematite replaced the mica of the schist. 



The old Hawley mine, a half mile farther north, is sunk on a vein 

 running N. 10° E. and dipping about 80^ E. This vein is situated in the 

 sericite-schist, 5 rods west of the junction of this schist and the ankerite- 

 chlorite-schist, from whose abundant store of iron the vein was doubtless 

 filled when the mountain-making movements opened the fissures and 

 stimulated the chemical activity of the heated waters. The mine was 

 much worked nunn- years ago, and though the shaft was filled, the deep 

 open workings have remained open and have furnished the many elegant 

 specimens of the "micaceous iron" from Hawley found in all cal)inets. 



This is the ore in the upper portion of the vein, and has been opened 

 for 80 or !X) feet south from the shaft, which is 50 feet in depth, with a 

 maximum thickness under 2 feet, A cross-cut of 10 feet cuts two more 

 narrow veins. It is n well-foliated rock, generallv finelv corrugated, and 



