8o 
EARTHS. CALCAREOUS. 12. Spainm. 
arenarium^ Diaphanous, with the foliations irregularly cluftered. 
Spatum confufum, Syst. nat. xii. 3. p. 50. « p. 
Spatum particulis difperfis. IFalL fyst. 1. p, 138. a. 3. 
Found in S-^eden and Saxony, white, grey, red, brown, or 
green, 
pelluddum. Pellucid, hyaline. 
Spiitum fpeculare, Syjt. nat. xii. 3. p. 48j a. i. 
Spatum pellucidum. Wall.fjst. 1.^.1 39. a. 4. a. 
Spatum rhomboidale. Crbnst. min. fed. 19. 1. a, z. l. 
Androdamas Plinii, Scheuchx.. it. Alp. p. 324. 542. 
2, Pellucid, tinged, 
Spatum folubile. Syst. nat xii. 3. /. 50. a. 6. 
Spatum compadtuni, Muf. Te/s. 16 a. 8, 
Wall. Jyst. min. I . ^. 1 39. a. 4. b, c, d, e. 
CroHst. min. fed. to. 1. a, z. 2. 
3. Doubling the dbjeifts by refrailron. 
Spatum lolubile. Sytt. nat. xii. 3.^. 48. a. 2. 
Spatum rhomboidale. Cronst. min. feS. 10. a, i.a. l. 
Spatum informe molle. Carth. min. iz. 
Spatum pellucidum. Wall, Jyst. mm. I./. 140. a. 5. 
Spatum alcalinum. Woltsr/d mm iq. 
Found in RuJJia, Lapland, Nornuay, Snueden, and other, moun- 
tainous parts of Europe, the variety 3, which doubles the ob- 
jeft by rcfradlion, chiefly in Iceland: colour yellow or yel- 
lowifh, olive, greenifli, blueiih, Imoke-colour, blackifli, 
rarely red or veined : when expofed to heat, it pa.'ts with us 
tranfparcncy and carbonic acid, and after calcination fome- 
times Ihines in the dark, if thrown upon hot coals. 
B. Of a peculiar figure. 
cellulosum. With the furface divided into cells. 
Found in Hungary and Hercynia. 
stalafliti. Of a more or lefs cylindrical form. 
2. Of a botryoidal figure, or refembling a bunch of grapes. 
3. Of a Ihrubby appearance. 
4. Refembling a branch of coral. 
Coral-form carbonate of lime. Sowerby Br. min. 1, 9. 
Found in Bohemia and Hungary, the corailiform variety plenti- 
fully in the loofc marl at St, Maws, Cornwall, wnere it is 
uled for manure, and in North Wales. Its appearance has io 
much the refembianec of a coral as to be commonly miihken 
for fuch, but it appears on examination to be aggregations of 
calcareous earth ramifying in the foft marl ; colour white, 
ycboivilh-white, or pale ferruginous from a final! mixture of 
iron. 
