OF ORES AND COALS. 123 



miners, Diced Ore. I have another fpecimen, broken, exhibit- 

 ing a beautiful natural politure. 



3. Diced ore rifing in fcveral orders from a plate of the com- 

 mon ore. 



4. Half lead-ore, and half cryftalline fpar> of a parallelepiped 

 figure. 



5. Tuberous, cavernofe lead-ore, with many fliort arborefcent 

 columns, of unequal lengths, fome on a plane, and others on 

 the fides and fteeps, glofly and fparkling. Thefe five from Allen- 

 Heads. 



6. Lead-ore of various colours, like thofe of the Iris, or rain- 

 bow, called by the miners, Peacocks-tail Ore, from its refembling 

 the colours in the train of that beautiful bird, red, purple, blue, 

 green, and yellow; the laft colour owing to its own metal, the 

 blue and green to copper, the red and purple to iron. This ore 

 may be preferved in all its beauty under a cover, not expofed to 

 the air. Without that caution, it gradually lofes its admired 

 tincts. It is broad-grained, fufes badly in the lire, and yields 

 not fo much lead as ore of the fame texture of an uniform co- 

 lour. The fores of the common ores in fufion frequently exhibit 

 the fame colours, and are preferved fometimes by the refiners for 

 prefents to the curious. They call them the Skimmings of lead- 

 ore. An ingenious gentlewoman from the fouth, lately here, 

 on having fome prefented to her, diverted herfelf in making 

 them into flower-works of various kinds ; of which I have fome 

 in frames under glafles, beautiful imitations of nature, fome of 

 carnations, and others of tulips and ranunculus's, both in little 



R 2 bafkets, 



