EARTHS, calcareous. 25. Gypfum. 103 
Meagre and dry, britt’e, breaking into long fplintery frag- 
ments, of a common form. 
Stirium gypfeam. nat, xii. 3 - P-VI’ *• 
Gypfum filament, para). PFalL fyll> i. 
Fibrous Gypfum* Ki rnu an miner. p.izz. 
Fibrous Gypfum. SchmeiJJer mineral, i. p 24Z. 
Fibrous Gvpfum. Thamfen them, p.bxb. 
Sulphate of lime. var. j^umofc. Son.'jerby Brit. min. t.z\. 
2. Very tranfparcnt, fixed, united. 
Stirium alabaftrinuro. Syfi. nat. xii. 3. p. 47. »■ 3 > 
3. Obfcure, fixed, with deciiflate ramentations. 
Stirium bafahinum. Sfji. nat. xii. 3. p. yj. ». 4 * 
Found in various parts of Britain and Europe, and according’ to 
Mr. Smuerh, is formed by the decompofition of fulphur of 
iron or pyrites, the fulphur of which combining with oxygenc 
forms fulphuric acid, which coming in contaft with lime, 
forms this Gypfum in various fanciful modes: its texture is 
fibrous, filamentous, or radiate, flexuous or ftraight, parallel 
or icattered : colour white, grey, yeliowifh, red, or honey- 
colour, with the colours fometimes meeting in ftripes. 
Meagre and dry, breaking into indeterminate fragments, 
fibrofo-lamellous, with Ihort fibres cutting the folia- 
tions perpendicularly. 
Gypfum Itriatum. W'all. /yll. miii, l. p. 171. «. 7. c.- 
Found in lujcany and Wirtemherg-, white. 
Meagre and dry, r.idiate in a parallel manner, breaking 
into indeterminate fragments. 
Kant. Lejke mineral. 1 . p. 228. 
Found nezr Coburg, in the province of MamfalJ: the rays fome- 
times broader, fometimes narrower. 
Meagre and dry, lamellar, with the foliations generally 
(pherical : breaking into indeterminate fragments. 
Granuhrly foliated Gypfum. Kirnuan. i. /> i 23. 
Lamellated Gypfum. SchmeiJJer mineral, i. p 241. 
Foliated Gypfum. Ehomfort s chem. 0^. /. 6f6. 
1. Shining internally. 
Gypfum part. aren. micant. Syft. nat. xii, 3./. 45. n. t. 
Wall. fiji. min. 1. 157- Cronfl.min. feS. 16. 
2. Without luftre internally. 
Gypfum argillofum. SyD.nat. xii. 3./>.45.»,t.' 
Wall, ft ft. min. l.p. 156. n. 2. Mt/f feff. 14. n. 12. 
Found in Britain and various pa.-ts of Europe, in vafi: malTes, 
and fometimes in lenticular cryftals : colour yeliowifh or 
blackifh-grey, cinereous, ochraceous, fisfh-colour, rarely ho- 
