38 Geology and Mineralogy of a part of Massachuselts, ye. 
Var. 7. Granular. 
In vast quantity. See Geol. Sketch. More or less is 
found in all the towns. 
Var. 8. Sand. 
This mineral, so abundant in Cheshire, should form a va- 
riety. See the Geol. Sketch. 
Var. 9. Blue Quartz. 
Cummington. Porter. Grayish blue, differs but litle 
from the smoky. 
Var. 10. Laminated. 
New var. found in Chester by Dr. Emmons. It is dis- — 
tinctly laminated, the folia separate by a blow, like these of 
laminated calcareous spar. It is partially translucent, 
though the faces of the lamina have not a perfect crystalline 
smoothness, and marked with oblique strie. 
2. Amethyst. 
In the trap rocks at W. Springfield. Emmons. 
3. Ferruginous Quartz. 
In Middlefield, 
Var. Yellow and Red. 
Forma considerable rock, in Pittsfield, composed almost 
entirely of small crystals. Also in Bennington. Eaton. 
4, Fetid Quartz. 
Abounds in Williamstown, New Ashford, Middlefield and 
the towns about it, It is often the greasy variety. 
5. Chalcedony. 
In Serpentine, in Middlefield, and in Hinsdale. 
