*7z NATURAL HISTORY of NORWAY. 



immenfe difparity in the price of our native and the Oriental 

 ftones. I have among my fmall collection of Norway-cryftalsj a 

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

 ment of the coimoifleurs, it might be cut into a very exquifite 

 jewel *. 

 Mn"i e a n ff las ' Among the Norway-cry ftals 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 fpecies of ftone lying in ftrata, or 

 flakes, or like fo many meets of paper, and as eafily 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 5 6 of his Mufcum, fays, that this Ruffian-glafs is 

 fometimes found in marble, and fometimes in hexagon figures, 

 like the above-mentioned mountain- cry ftals* 



SECT. IX. 



Graiiafes. Granates> which derive their name from the fimilarity of their 



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

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

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



in Litho. me i f a y Sj that in Norway, as Jempteland, many mill-ftones are 



p- 45- mixed with granates, but the few in my porTeflion, or which I fee 

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

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



Page 34. phrafe is, not ripe. Thofe mentioned by Olig Jacobeus, among 

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

 better appearance. 



Amethifts. 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 teffelatus, maculis purpureis ac hyacinthi- 

 nis hinc inde diftin&is ex ofterdalia Norvaegia?. 



* Cryftallos puriores Americanis fuppeditat Norvegia noftra, ut ex fpecimine 

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



+ Reperiuntur etiam Norvegia dodecalatorum impuriores, vena talci plerumque 

 infedi, colore ad nigredinem tendentes, ut eo primum genus Orientahum ^mulari 

 videantur, natura quandoque politi. Tantas magnitudinis mihi unus eft, ut ovum 

 columbinum fuperet. Crefcunt in vena talci tanta copia, ut ex 11s cum vena fua.jun- 

 dis, lapides molares conficiant. 01. Worm. Muf. p. 104. . 



