EARTHS. CALCAREOUS. 25. Gypfum. 105 



tesfulare. Pellucid, white, ihining, lamellar with ftraight foliations, 

 breaking into rhomboidal fragments, cubic* 



1. With two angles truncate, 



Natriim pyritiforme. 6jj/, nat, xii. 3, ^, gi. «, io, 

 Gmel.Jyst^ nai, 3. /.447. tab^ l.f. 29, 



2. With four angles truncate. 



Natrum angul. trunc. Spt. nat.xxi. 3. ^.91. ». 9. b. 



Gmel.fyst, nat. 3. /».446. tab, \. Jig. 16. 



Found in various parts of Germany: i) containing 10 lefTef 



trapeziums, and 2 larger pentagons: 2) with 8 trapeziums, 



4 rhombs, and 2 fquares, 



Htraedrum, Pellucid, white, (hining, in 4-rided prifms, breaking into 

 rhomboidal fragments, bmellar with ftraight foli- 

 ations, 



Spathum columnare. Gerh. Beytr, 2. miner, i. ^.272. 



Found capillary, near Freyenmualde, 



prismaticum pejlucid, white, (hining, in 6-rided prifms, breaking into 



rhomboidal fragments, lamellar with ftraight foli* 

 ations, 



1. With the prifms truncate^ 



2. With the terminal faces ending in a point. 

 Natrum flexile. Syst. nat. xii. 3. f. 90, n, 7. 

 Cryllallus felenitica. Amczn. acad. i. p, 476. ». 2* 

 Gmel. fyst. nai. 3. p. 446. tab. i. [ig» 15. 



3. With the terminal faces ending in a 3-lided pyramid. 

 Natrum bafaltinum. *5'y/?, nat, xii. 3. />. 87. «. 9. 



4. With the terminal faces ending in a 4-fided pyramid. 

 Karjien hejke mineral, i . p, 291. 



Found in Germany^ Aufiria^ Snvitxerlatidy Saxony, and various 

 parts of Europe, generally accompanying the G. glacialis and 

 fpecularis; the cryilals large, or moderate, fometimes capil- 

 lary, often with 2 of the faces fmooth and the reft of the 

 pnfm longitudinally ftriate, fometimes in pairs, or aggregate 

 in a ftellate manner. 



pyramidal. White, ftiining, pellucid, breaking into rhomboidal frag- 

 ments, in 3-iided pyramids, lamellar with ftraight fo- 

 liations. 



Born, ind.fofi. 2. /♦ 85. 



Found in the canals^ through which the fait waters of the lakes 

 of Upper-Aufiria have been conducted. 



Unticulare. White, (hining, pellucid, breaking into rhomboidal frag- 

 ments, lenticular, lamellar, with ftraight foliations, 



VOL. VII. — O 



