Fibrous calcareous fpar. Calcareous fpar
appearing mamellated.
Macles, or twin cryftals ; fome exceedingly
rare, and in great variety.
Opake fnow white calcareous fpar, cryftal-
lized in double hexagonal pyramids, joined
at their bafes.
Stalactites forming a variety of beautiful
colours, with the appearance of agate vein.
Staladites, the terminations cryftallized.
Green ftala&ites, very rare.
Granulated calcareous fpar, or in mafles,
compofed of grains.
Rofe coloured calcareous ipar, amorphous.
To this order alfo belongs a great variety
of marbles. The upper furface of the
limeftone is frequently nearly white, probably
from being bleached by the weather ;
it is perfectly hard; a variety of it is found
at Lover’s Leap, near Buxton.
Of
Of a fine ftone colour, near Hopton.
Fine red brown, near Afhford, full of large
marine remains.
Fine black is found at Afhford, Matlock,
Monfaldale, and various places.
Coralloid marbles exhibiting a variety of
madrepores, are found in laminae in various
parts of the ftratum.
Dark coloured limeftone, full of marine
exuviæ, in large figures.
Dark coloured limeftone in very minute
figures at Wetton. Frequently in the ftratum
of limeftone are decompofing green
globules, and fmall green veins with decompofing
pirites. This fubftance is foft,
and of a fine light green colour.
Before proceeding to the metallic ores, a
few of the inflammables maybe mentioned.
Among thefe the moft peculiar and remarkable
is the elaftic bitumen, in its various
ftates, (or mineral cahoutchou) a recent '
difeovery.