$4 The Production and Generation 



grooves quite run to decay, or not immediately 

 expofed to the fanning of the air. 



Moreover, we are to obferve this circumftance, 

 which gives a great degree of probability to our 

 notion of both thefe forts of finter, viz. that the 

 white, like a lime, binds as eafily as Hone, which 

 the yellow, being metallic, does not : yet it mould 

 be remembered, that we are to except the luty 

 or talky finter or gurs ; fuch as, in particular, 

 are to be met with, very beautiful, on the Him- 

 melsfirften and Gunther, at WeifTenborn ; but 

 which is not fo much of a lime, as a grey-filver 

 white, and does not petrify, In fhort, the finter 

 is either luty, and of a marl -earth; or metallic, 

 chiefly from iron ; or calcarious and petrefiable. 

 Of the third fort, namely, that frequently called 

 jlalaftites, or ftalagmites^ drop-ftone, and which 

 muft be well known from the famous Bauman's 

 cave, is not fo uncommon in mines, provided we 

 are attentive enough : -yet, fo far as I remember, 

 it is no where found, in the territory of Friberg, 

 fo plentifully as at the mine called Himmet-farth- 

 chrifti ; nor, indeed, can it be fo common, fee- 

 ing, in the flrft place, old decayed mine- works, 

 and moreover, certain waters, muft concur to its 

 production; and there, upon due obfervation of 

 only the nature of tht finter , the mod pertinacious 

 an opinion muft drop the period of the creation for 

 its firft origination; for, there the fifiures, the 

 fides, and roofs, are covered over with a ftony 

 fhell, or cruft : nay, what is very extraordinary, 

 the water in a pit of the groove, when full, was 

 covered over with a ftony cruft, as with a thin 

 ice, the thicknefs of the back of a knife, and tho' 

 loofened at the fides, ftill remained floating upon 

 the water, whence it was called floating finter. 



On fuch drop-ftone actual lead-glitter has been 

 Found, two famples of which I have in my own 



pofleflion ; 



