MINERALOGY^' k6g 
SECT. CCLXXXVIII. 
4. Metals in the form of extraneous bodies^; 
Larvae metallifer^, 
4, Silver, Larv£ argentifera} 
1. Native. 
a. On the furfaces of fliells. England.’ 
2, Miiieralifed \vith copper and fulphur. 
a, Fahlert 2 orgreyfilverore(Seft. clxxi.) 
in form of ears of corn, &c. and fup- 
pofed to be vegetables, are found in 
Argillaceous flate at Frankenberg and 
^ahlitteren in Hefle. 
SECT. CCLXXXIX. 
B. Copper, Larv^ cuprif era. 
1, Copper in form of calx. Cuprum calci<^ 
forme corpora peregrina ingrejfum, 
a. In form of animals, or of parts be- 
longing to them. 
• 1. Ivory, and other bones of the ele<- 
phant. The T urcois or T urky ftone; 
It is of a blueifli green colour, and 
much valued in the Eaft. 
At Simore in Languedoc bones 
of animals are dug, which durjilg 
the calcination alTume a blue co- 
lour ; but it is not' probable that 
the blue colour is owing to copper^' 
SEC T, CCXC. 
2. Mineraiiled copper,^ which imj^egnatos 
extraneous bodies. Cuprum mineralifatUM 
corpora peregrina ingrejfum. 
4. Witg 
