?4 EARTHS. CALCAREOUS ra. Spamm. 
Cryftallus fubnltriform. Jmcen acad, i. p. j^%o. 2z. 
N'rrum irregulare. Mu/. Tefu 26, » 1. tab. z./ 7. 
Spathum crylUllizatum. l-Fal}. fist. \.p. 141. n. 6. c. 
Cryftalii fpatofi. Cronst.min. Jidi. 11. i. b. 1, 
Gmel fyst net. 3. p.i^\-].tab. 1. f. 31. 
2. With the pyramids hollow and empty. 
3 Each pyramid augmented by another 3-fided pyramid. 
4. With the margins of the pyramids obtufe. 
5. With one of the pyramids longer. 
V..ryltailusnitr’formis, Jman. acad, 1. p. 477. t. 16. f g, 10. 
6. With the cryftals cluftcred in bundles, 
a Found ip the mines of Derfijhire and Cumberland, in Snxieden, 
Hungary and Germany : more frequently white than yellowilh 
or with a tinge of green : fometimes pellucid, fomet mes 
opalte : the cryftals ircquently very fniall, rarely traiifverlely 
grooved, and often placed in a regular fcries. 
t^exangula- With a fingle 6 -fided pyramid. 
Spat, cryftal. hexang. Wall fist, min. t.p. 141. ». 6. b. 
2. The pyramid augmented at the top with an additional 3-fided 
pyramid. 
3. With the cryftals furrounding other bodies in the form of 
prickles. 
Waller fist, min, 1. p. 142. n. 6. d. 
Found in the mines of Sasieden, Hercynia, Germany, Saxony, and 
Hungary; the cryftals larger or fmaller, broader or narrower, 
fometimes capillary, rarely invefted, often cutting each other 
at right angles, or clullered togeiher in the form of fafcicles, 
ftars, bundle;, Iheafs of corn, Ihrubs or double 6-ftded py- 
ramids. 
fentaedrum. With a Ample ^-fided pyramid. 
Spat, calcar, cryftal. Born, ind.fo/f. i. y>, 6. 
Found in Hercynia, white, tranfparent, aggregate. 
pentagonum With a double 5 fided pyramid. 
Born, ind.fofs I. p.S, 7. 
Found in Hungary, in the country of the Tyrolefe, fometime£ 
opake, fometimes pellucid, generally white, rarely with a 
rofaceous tinge : the cryftals are fometimes empty, with th^ 
faces unequal, 
pramidale. With a double ^-Aded pyramid. 
Born ind Jofs l . p i- p- 
2. With the aiigle.s of the common bafe truncate, 
Karsten Lejke mineral, I. p, 258. 
3 With the cryftals empty. 
li,arsten lejle mineral . l. p,z6z, 
