Geology and Mineralogy of 4 part of Massachusetts, §-c. 37 
: CLASS I. 
1. Quartz. 
1. Common Quartz. 
Var. 1. Limpid. 
Hexaedral prisms terminated at one extremity by a six 
sided pyramid—two sides often wider than the others—at 
Lenox, Williamstown, Lee, and Lansingburgh. Also in 
Chatham. Eaton. In Middlefield, in minute Pyne in 
cavities of serpentine lined with quartz. Emmon 
Quartz with dendritic forms, Southampton mine. Beinsoail 
Var. 2. Smoky. 
Often occurs in granite. In hexaedral prisms in Stock- 
bridge. On Monument. Mountain a crystal was found 
nearly a foot long, and some inches in diameter, and must 
have weighed several pounds. It was broken by the dis- 
coverer, and I have only a large fragment of it. It is very 
beautiful. — in rolled specimens, onthe banks of 
streams. Emmon 
Var. 3. Rose Red. 
Williamstown, only a specimen. In Chester, it is found 
in granite. Emmons 
Var. 4. Irised. 
In rolled masses—beautiful—in Middlefield. Emmons. 
Plainfield. Porter. 
Var. 5. Greasy. 
Williamstown, New Ashford, Lenox, and Middlefield. 
Var. 6. Tabular. . 
Middlefield. Emmons. 
