108 
ILLUSTRATIONS OF 
by these fissures into millions of small angular frag- 
ments of irregular form, so that it is scarcely pjossible 
to find a solid block of one foot in diameter, except 
in those cases where the felspar is sufficiently tenacious 
to hold together the quartz oze fragments in a kind of 
breccia. Most frequently these interstices are entirely 
empty, and the rock in consequence falls immediately 
into small pieces on being moved from its native bed, 
so that without artificial fracture, it is applicable at 
once to the purposes of small gravel.^ 
Towards the southern extremity of the ridge is a 
trap rock, near to which is an old quarry of transition 
limestone. This limestone occurs again towards the 
north extremity of the chain, with an insulated patch 
of coal measures occupying the space between the 
quartz and the limestone, while to the north-east are 
quarries of old red f?andstone. On the western side 
of the quartz, dividing it from the Upper Lickey, is a 
triangular valley containing coal measures, which 
have never been wrought on any extensive scale. 
The high ridge of quartz on the east, and the still 
higher escarpment of new red sandstone on the south- 
west, limit this little valley, which is terminated on 
the south by the union of these two ridges at an 
acute angle. Thus the Lower Lickey, and its little 
group of attendant rocks more ancient than the new 
red sandstone, is, together with them, completely 
insulated by a vast extent of new red sandstone, 
abutting against and covering them up on every side, 
and dividing them from the nearest trap, lime and 
^ Professor Buckland, in Gcolog. Trans^ 4to. vol. 2. 
