9 W. EB. Hidden—Mineral Localities in North Carolina. 
of diamond. The basal truncation and the (new ?) plane in 
the —4 zone occur usually rough, though in two instances they 
were well polished planes. 
Fig. F has the dihexagonal 
pyramid in the 7-2 zone. Fig. 
having the planes 2-2, 3.3, 
and 4-4* beveling every pris- 
matic face at its intersection 
with Rand —1. It also has 
other interesting rare planes. 
This crystal was. perfectly 
pellucid, had a beautiful yel- 
low tint and all its planes 
highly polished. Fig. I illus- 
trates a form not uncommon 
in North Carolina. Often 
the cap or terminal crystal is strongly in contrast with the 
prism in color and transparency. Large groups are often found | 
showing this second formation in parallel position. 
the figures were drawn directly from the crystals and are 
of natural size: the determinations of the planes were made 
* More probably 6-$ and 8-§. + Geol. N. C., Kerr, 1880, page 88. 
