VOL. XXVIII.] PHILOSOPHICAL TRANSACTIONS. 4Q 



tinuation of the same subject begun, and prosecuted in some former papers in 

 these Transactions. 



^ short Account of some Swedish Minerals, &c. sent from Mr. Angestein, Over- 

 seer of the King of Swederis Mines, to Mr, James Petiver, jipothtcary^ 

 and F.R.S. ]S1°337, art. 21, p. 222. 



1. Bitumen fossile, coagulatum, in Ferrifodina Betzbergapud Suecos. This 

 is very light, black, and shining, like pitch, or Canel-coal ; in taste insipid, 

 brittle and not clammy. 



2. Minera Ferri Betzbergae. A blackish mineral, full of small glittering 

 sandy particles, which easily break and crumble small like black sand ; it is 

 ponderous, and without any drossy mixture. 



3. Minera Martis Betzbergae. The outside lumps are smooth and shining; 

 its inside of finer particles than the last, but, when broken, more shining, large 

 and flaky. 



4. Minera Martis Betzbergae, carbonis facie. — The outside smooth and 

 somewhat shining hke pit-coal, the inside more gray and glittering. 



5. Minera Martis ditissima, fodinae Danemorae Sueciae. — This resembles a 

 slate-coal of a lead colour, heavy, but neither shining nor glittering, except a 

 little brassy in the interstices, which are but few, and those irregular: this 

 had a sparry vein through it, about the thickness of a quarter of an inch. 



6. Rubinus globulosus, e Fodina Garpenberg Sueciae. — These are near as 

 large as hazel nuts ; the outside in many places transparent, but broken and 

 rugged ; they seem more ponderous than a clear ruby of the same size. 



7. Minera Veneris seu Cupri, Garpenbergae. — Its exterior face brassy and 

 shining, with some few spaces of deep copper, with blue in the centre ; the 

 interstices are pale brass in some places, and where it is fresh broken into the 

 heart of the ore, it is of a glorious lustre; in some places it is coated with a 

 white or discoloured spar. 



8. Minera Cupri e fodina Fahlkunensi Sueciae. — This is mostly composed of 

 pale brassy micae, with a small mixture of a deeper colour, and near a quarter 

 part of black sprinkles, somewhat shining. 



g. Minera Cupri ditissima Lazur dicta, e fodina Linsnadiensi provinciae 

 Heerdacensis Sueciae. — The ore is very like N° 7 ; it is coated with yellowish 

 spar, mixed with a palish white. ^ 



10. Minera Argenti-Plumbea e fodina Hollefarsen Sueciae. — Very like our 

 Mendip lead ore, full of large sparkling flakes or micae. 



11. Certum genus Aluminis plumosi cum Minera Plumbi intermixtum, e 

 fodina Sahlberg Sueciae. — The amiant part is of a light gray or lead colour, 



VOL. VI. H 



