240 
fguratuhii 
Marcasitit 
INFLAMMABLES. 79 ' Sulphur. 
Intimately combined with irouj with a metallic fplendour^ 
of a gold-yellow colour and more or lefs rounded form- 
Pyrites figurrtus. Syit. nat. xii. 3. f. J 14; n. 4. 
Sulphur globulof. conerct. Wall. /ylL 2. 129, ». 5. 
Su'phure.us nuindic. Schmeiffir mher. Z: p. m. 
Pyrites. Kir^aian ttiineral. 2. p. 75, 76. 
Siilphuret of irori. 7 homfon chem. p.^x^ 
Sulphurct of iron. Sonuerby Brit. min. t. 104. 
Found very commonly in mints and argillaceous marl, of d 
more or Icfs globular form, of hemifpherical, ovate, kidney- 
form. ftiilaflitical, and afluming various fanciful reprefen- 
tion?, as cones, frtiit, muihrooms, Ihrubs, &c. 
Intimately combined with iron, with a metallic fplendourj 
of a gold-yellow colour, in the form of cryftals; 
Pyrites crylhllinus. Sy/l. nat xii. 3. p. 113; n. 3. 
Sulphur forma cryil.illina. Wail.fyst. z, p. 131. ». 6. 
Pyrites. Ktr’iuan mineral 2. p. 76. 
Sulphur pyrites. Sshineiffer mineral. 2. p. iii, 
Sulphurct of iron. Thomfon them. \. p. ^x, 
Sulphuret of iron. Smuerby Brit. min. t. 105. 
1. Pyrarnidal, With the pyramid 3-lided. 
The pyramid perfeft. 
The pyramid with the margins truncates 
Gmel. fyst. nat. 3. p. 447. t. x.f. 374 
2. Cryftalliicd in cUbes. 
So'werhy Brit. min. I. tab. 29, 30. 
Gmel fist. nat. 3. p. 446. tab. x.f. 1^: 
With the faces convex; 
With the faces flat. 
With the faces fmoothi 
With the faces llriate. 
With the lines on all the faces in the fame dircdlion. 
With the lines on the faces alternately longitudinal & trahfverfe' 
3. Cryftallized in capillary prifms, which are more frequently 
difpofed in a llellatc than a parallel manner; 
The prifms 6.fided. 
The prifms 8-fided. 
The prifms 1 2-fided and perfe£l:4 
Gmel. fist. nat. 34 p. 447. t. X.f. 29, 3O4 Muf. Tefs.t, iz.f. 3. 
The prifms i z-fided, with fome of the angles truncate. 
Gmel. fiji. nat. 3. p. 446. t. x.f. 21. 
The prifms 12-flded, with moft of the angles truncate. 
Gmel fy/i. nat. 3. tab, 1 . f. 1 8; 334 
Found very commonly among coals and Ihiftofe rocks, and it* 
mines: it was formerly cut and poliflied by lapidaries, and 
lhaped into buttons and other ornaments: fpccific gravity 
froi-n 4, 1006. to 4,7491. Sowerby. 
