95 



TAB. CCCLIL 



ST ANNUM oxygenizatum. 

 Hcematitic Oxide of Tin. Wood Tin. 



Class 3. Metal*. Order I. Homogeneous. 



Gen. 5. Tin. Spec. I. Oxide. 



Div. 2. Imitative. 



Syn. Fibrous Tin Stone, Wood Tin Ore. Kirw. 2. 

 198. 

 Etain oxyde concretionne. Haiiy, 4. 147. 



The peculiar haematitic structure of this Ore of Tin, or 

 rather the radiated structure that often attends the Haematite 

 or Iron Ores, having a woody appearance, has given rise to 

 the name, which serves very well upon the whole, although 

 we do not think it very apt, considering its hardness and 

 specific gravity. In its usual state it may most readily be 

 distinguished from Iron by merely weighing it in the hand. 

 The upper specimen is magnificent as to size, being very 

 rarely found half so large. It was lent me for this public 

 use by Edward Hawkins, Esq., who possesses a fine assort- 

 ment, and is inferior only to one in the Greville collection. 



The right hand lower specimens are of the most usual size j 

 the left hand one shows the concentrating radii 1 with the 

 outer coat bubbled as it were, and according with the general 

 appearance of the upper specimen. 



It is perhaps an extraordinary circumstance that this 

 substance is not known, to be attached to any rock, and it 



