i 7 2 NATURAL HISTORY of N RWAT. . 



imnienfe difparity in the price of our native and the Oriental 

 Hones. I have among my fmall colle&ion of Norway-cryftals, a 

 piece fo clear and pure, and withal not vitrious, that in the judg- 

 ment of the connoifTeurs, it might be cut into a very exquiiite 

 jewel *. 

 Manenghs. Among the Norway-cryftals is alfo reckoned the Marienglas, 

 Ifinglafs, or Ryfglafs, as it is called here, being moftly found in 

 Ruffia, where, on account of its tranfparency, it is ufed for win- 

 dow-panes. This is a particular Ipecies of ftone lying in ftrata, or 

 flakes, or like fo many meets of paper, and as ealily feparated. I 

 have a piece of dark red, which is very uncommon, it being gene- 

 rally clear or greyifh. Wormius, who had never feen any of this 

 colour, page 56 of his Mufseum, fays, that this Ruflian-glafs is 

 ibmetimes found in marble, and fometimes in hexagon figures, 

 like the above-mentioned mountain-cryftals. 



SECT. IX. 



Granates. Granates, which derive their name from the limilarity of their 



dark red colour, with that' of the kernels of the pomegranets, are 

 found at Kongiberg, in Gulbranfdale, Ofterdale *, and other parts, 

 and not feldom inclofed in other maffes of ftone; and Mr. Bro- 



in Litho- me j f a ^ Sj tnat i n Norway, as Jempteland, many mill-flones are 



?• 45< mixed with granates, but the few in my pofTeilion, or which I fee 

 elfewhere, and are of the fize of a middling hazle-nut, with 

 many angles, have no particular luhre, and are foul, or as the 



P^ 34. plirafe is, not ripe. Thofe mentioned by Olig Jacobeus, among 

 the northern curiofities in the Mufeum regium, I fuppofe, make a 

 better appearance. 



hm&ms. Norway amathifts are likewife mentioned there, but with the 



addition that they want the hardnefs of the Oriental. The fame 

 author, page 32, likewife mentions another ftone, which he thus 

 defcribes, Pyrites aureus teflelatus, maculis purpureis ac hyacinthi- 

 nis hinc inde diflinais ex ofterdalia Norvaegias. 



* Cryftallos puriores Americanis fuppeditat Norvegia noftra, ut ex fpecimine 

 • tranfmiffo videbis. Ep. Ol. Wormii, Tom. II. p. 820. 



f Reperiuntur etiam Norvegia dodecalatorum impuriores, vena talci plerumque 

 jnfefti, colore ad nigredinem tendentes, ut eo primum genus Orientalium smulari 

 videantur, natura qnandoque politi. Tantse magnitudinis mihi unus eft, ut ovum 

 columbinum fuperet. Crefcunt in vena talci tanta copia, ut ex iis cum vena fua jun- 

 &is, lapides molares confidant, Ol. Worm, Muf. p. 104. 



The 



