18 
TIN OEES. 
406 & 407. Cassiterite, va- 
rieties “ Toads Eye ” and “Wood 
Tin ” {fibrous hinoxide in con ¬ 
centric lamince ). 
Royal Polberro Consols, St. Agnes, 
Cornwall. 
408. Made or twin Felspar 
crystal replaced, partly by Oxide 
OF Tin, and partly by sandy 
Mica. 
Huel Coates, St. Agnes, Cornwall. 
409. Made and twin Felspar 
crystals replaced by micaceous 
sand. 
Huel Coates, St. Agnes. 
Presented by W, Hoskins. 
410. Cassiterite, pseudomor- 
phous, after made crystals of 
Felspar. 
Huel Coates, St. Agnes. 
Presented by W. Hoskins, 
411 & 412. Cassiterite, pseu- 
domorplious, or in crystal forms 
which prove that it has taken the 
place of crystals of F elspar,formerly 
existing in the Porphyry. 
Presented by the late J. Garby. 
These very remarkable crystals oc¬ 
curred in millions a few years ago in Huel 
Coates, St. Agnes, whence they have found 
their way as cabinet specimens to every 
civilized country in the world. 
Stream Tin. 
“ Stream Tin,” (Pebble Tin 
Ore,) or that which is found in 
gravels, clays, &c., near the sur¬ 
face, similarly to the gold of the 
“ diggings.” 
413. Part of a pebble of Stream 
Tin, consisting of variety “ Wood 
tin,” and quartz. 
Cornwall. 
414. Stream Tin. 
Cor mo all. 
Shelf VI. 
415. 416, & 417. Stream Tin, 
variety “Wood tin,” in small peb¬ 
bles and sand. 
From the. vicinity of Penzance, 
Cornwall. 
418. Stream Tin, conglomerate, 
called “ Ram tin.” 
Cornioall. 
Presented by G. B, Greenough, F.B.S. 
419. Pebble of Stream Tin. 
Car non Stream Works,near Truro, 
Cornwall. 
The bed was worked for some years 
under the tidal river. 
420. Stream Tin, a large peb¬ 
ble, itself formed of angular frag¬ 
ments cemented by tin ore. 
From Carnon Stream Works, near 
Truro, Cornwall. 
Presented by J. Garby. 
421 to 423. Pebbles of Stream 
Tin. 
Carnon. 
Presented by J. Euys and Sir H, De 
la Beche. 
424 to 426. Pebbles of Strea 3 i 
Tin. (424, variety “Wood tin: 
No. 426, crystalline Cassiterite.) 
Pentuan Stream Works, near St. 
Austell, Cornwall. 
Presented by Captain Paul. 
427. Small pebbles of Stream 
Tin. 
Pentuan. 
Presented by Sir H. De la Beche. 
428. Stream Tin, sand from 
the washings. 
St. Austell, Cornwall. 
Presented by G. B. Greenough. 
429. Portion of a large pebble 
of Stream Tin. 
Near St. Austell. 
430 to 435. Pebbles of Stream 
Tin. 
Bodmin Moor, and Red Moor, 
near Bodmin, CoimwaU. 
Presented by Sir H. De la Beche. 
435a. Oxide of Tin. 
From Smith’s Wood Mine, near 
Ashburton. Devonshire. 
Presented by M. Parkinson, 
