426 CLAYS AND CLAY INDUSTRY. 



Holland. — The following is an analysis of clay 1 near Holland, 

 found on the property of A. C. Rapp, It is apparently derived 

 from the crystalline gneisses which surround it. The clay may 

 be of buff -burning character, but is not now worked. 



Analysis of a clay of A. C. Rapp, Holland. 



Silica (SiO.), 54.97 



Iron oxide (Fe 2 3 ) and Alumina (AI2O3), 33.06 



Titanic oxide (Ti(X>) , 0.24 



Lime (CaO), 0.20 



Magnesia (MgO), 0.38 



Soda (Na 2 0), 0.61 



Potash (K 2 0), . ... 0.82 



Moisture, 0.26 



Water (Ignition), 9.70 



100.24 



Junction. — Near Junction (Loc. 281, Lab. No. 733), a clay 

 derived by wash from the neighboring slopes of decomposed gneiss 

 rock occurs on the property of C. N. Moore. It is not being used 

 and its extent and thickness are unknown, but it is favorably lo- 

 cated as respects railroad facilities. It is rather a gritty-feeling 

 clay of medium plasticity and works up with 19 per cent, water. 

 It burned with the following results : 



Burning test of clay from C. N. Moore, Junction. 



Cone 05 15 



Fire shrinkage, 4% 5% 12% 



Absorption, 18.29% 10.23% 0.95% 



Color, yellowish pink light red dark brown 



Condition, not steel-hard nearly steel-hard steel-hard 



Bethlehem. — A bed of white clay with a large percentage of 

 very fine quartz sand and partially-decomposed feldspar is said 

 to occur i l / 2 miles southwest of Bethlehem, Hunterdon county 

 (p. 208). 



New Germwitowri. — A deposit of sandy brick clay is reported 

 to occur near New Germantown on the property of P. W. Melick, 



1 Analysis made by W. S. Myers, 1894, unpublished. 



