^Straits. 
EARTHS. PONDEROUS. 9. Sydneia. 75 
3. Fibioas, wi;h the fibres diverging, texture of the cryflals 
ftratght foliated. 
Foliated folphat of Strontian. Ibamfin cbm. 3. f, 625* 
Found in Britain and Sicily, in mafi'es and cryftab: the anaor- 
phous pieces fibrous, with the fibres diverging: cryttals 
grouped, ihining, femhranfparent : colour white. 
9. SYDNEIA, Confifts of ponderous earth, alu- 
mina, fine fand, and fomc cOlourlefs mica . 
foluble in heated rpuriatie acid only; the folu- 
tion not cryftaliizing, but becoming a butyra- 
ceous and dellcjuefcent mals: melts in a heat or 
1 5 deg. of Wedgwood. 
Sydketa. 
Sydneia, or Sidney Earth. Kirwaamintr. i./. 1$. 
Sydneia. JfWgwoJ. Philof.Tran/. 1790. /. 306. 
Auftralis Sidny Earth. Schmeijfer miner. 1. p 45. _ 
Found in S'/dney Cave, in Nevi Sm>th ^ ilts, white with fome- 
tiraes a few black particles refembling black lead: the buty- 
raceous mafs from the folution is p^lc yellow and not cor- 
rofive. 
