MINERALOGY. 
21 
•Of this kind is a fcaladitical crafty which 
has formed a ftratum, or rather filed a 
fiffiire between the ftrata of the earth at 
Helfingborg in the pro\^ince of Skone ^ it 
is of a very, finguiar figure, refenibling 
conical caps of paper placed and fixed one 
in the other, diminifhing by degrees both 
in height and the other dimenfions. 
2 . Solid Stala6lites of a fparry texture^. Sta- 
laBites folidus pariiculis fpatofis. 
a. Floilow, and in form of a cone, Coni- 
formis. 
I. White, and femitranfparent, from 
Chaceiine near Rouen in France 
^ In making Hms-water {aqua calch ^i^a) one may obferve 
how the lime gathers^ iirft like a pellicle on the furface of 
the water, and afterwards, when this breaks, falls down to 
the bottom in form of a fcaly fediment, which is called 
mor calcis : after that, a new pellicle is formed, which like- 
wife falls down ; and in this manner it continues for a long 
while, although the lime-water had before been.paiTed thro* 
a liltre. This we may alfo imagine to be the way in which the 
works of Nature are performed ; whence the llalailites 
commonly is of a fcaly texture, or at ieafc difcov'ers feme 
tendency towards it. But a ftaladlites of a fparry texture, 
fuchas above-mentioned from Rouen, may be fuppofed to 
be owing to a more copious principle concurring at once ; 
and in the fame manner the fparry limefcone and its cryftalli- 
fations feem likewife to have been produced, iince they, as 
far as I know, are only found in clefts, which, when they 
have been filled up with a fiony matter, the Swedifh miners 
call Klyfler^ and Gangar or Veins. In regard lo this, the ila- 
]a6iiies, the fparry limeilone, and alfo its cryftallifations, 
might all be ranked under the fame title in a fyftematicai de- 
fcription, as very little dilfarent from one another, if it was 
not neceffary in deferibing mines, and other works, to give 
them their feparate names : becaufe it is certain, that a piece 
wliich is broken from large rpar-cryftab, or from fparry lla- 
ladlites, may in a cabinet pafs extremely well for a common 
fparry iimeltone, without leaving any lufpicion of its -former 
figure, before it was broke, 
c 3 
S E C T. 
