662 



Appendix. 



Quartz Rock. 



545 White hyaline Quartz from mica slate, 



546 " do do 



547 Whitish Quartz nearly opaque do 



do do from a vein in 



hornblende slate, 



549 do containing argillaceous slate, 



550 Fine white granular Quartz, 



551 Reddish granular do 



552 do do 



553 and 554 Gray, do 

 555 Dark gray, do 

 556, 557 and 558 Arenaceous disintegating Quartz 



Heath. 

 Plainfield. 

 Saddle Mountain. 



Gill. 



Guilford, Vt. 

 Cumberland, R. Island. 

 Berkshire Connty. 

 Cheshire. 

 Pittsfield. 

 Windsor. 



Cheshire. 



559 Granular Quartz, striped, 



560 Hyaline dark smoky Quartz, 



561 do do 



562 do light smoky, do 



563 Reddish compact Quartz, 



564 do do 



565 Bluish compact quartz, 



566 Greenish do 



567 Porous Quartz (Buhrstone) 



Conway. 

 Amherst, 

 in argillaceous slate, 



Guilford, Vt. 

 Sterling. 

 Leverett. 

 Prescott. 



Amherst. 

 Cumberland, 

 Washington. 



R. Island. 



Pelham. 



568 Arenaceous Quartz with actynolite associated with gneiss, 



569 Gray fine granular quartz, Cumberland R. Island. 

 5'0 do do Framingham. 

 5 ' 1 Gray hyaline or coarsely granular quartz with feldspar. 



572 Light gray granular Quartz with small scales of mica, 



573 do do stratified (Buhrstone locality) 



574 The same with more mica and contorted folia, Lee. 



575 Gray hyaline quartz with mica ; associated with gneiss, 



576 Brecciated particolored quartz with mica, Amherst. 



577 Rhomhoidal quartz with mica, Northfield. 

 578, 579 and 580 Compact gray quartz with mica, Bernardston. 



581 Quartz and talc, Webster. 



582 and 583 do Hawley. 



584 Quartz with Actynolite connected with gneiss, Pelham. 



585 do with crystals of hornblende, Hawley. 



586 Argillaceous slate with quartz veins, S. Hadley Canal. 



587 Quartz granular and mica connected with gneiss, Windsor. 



Pelham. 

 Lee. 



Pittsfield. 



New Salem. 



associated with gneiss, 



588 do 



589 do 



590 do 



591 do under the Buhrstone, 



592 do 



593 Quartz mica and feldspar passing into gneiss, 



594 Quartz and mica 



595 do 



Webster. 

 Mendon. 

 Webster. 

 Pittsfield. 

 Dalton. 

 Bernardston. 

 Framingham. 

 Cumberland, R. Island. 



596 do passing into mica slate, Zoar at the Bridge. 



597 Arenaceous quartz and mica, Plainfield. 



598 Quartz and mica vescicular, Chesterfield. 



599 do Conway. 



600 Quartz mica and feldspar passing into gneiss, Mendon. 



601 Quartz with argillaceous slate near the lime bed, Bernardston. 



602 Brecciated Quartz, Leverett. 



603 do Amherst. 

 604, 605 and 606 do cement hematitic iron, Dalton, 



607 do cement iron ? Amherst. 



608 do quartz and micaceous slate, Williamshurgh. 



