II. MINERALS, ETC. 



889 



3468. Specimens of Mica 



quartz. 



3466. Collection of 20O separate Crystals, for minera- 

 logical and crystallographical study ; their faces have been cry- 

 stallographically determined ; the system of notation used is that 

 of Naumann. Bernh. Sturtz, Bonn. 



3467. Specimens from Mitscherlich's Collection of 

 Artificially formed Minerals, Felspar, Magnetic Iron Ore, 

 &c. P ro f' A. Mitscherlich, Mutiden, Hanover. 



containing tourmalin, garnet, and 

 Max. Raphael, Breslau. 



3469. Collection of Plates of Crystals, Selenite, and 

 Mica combinations, Dichroiscope, cubes and plates for showing 

 dichroism ; about 210 pieces in mahogany case. 



Wilhelm Stecg, Homburg vor der Hohe. 



In the collection of plates of crystals are a large number of beautiful, rare, 

 and valuable minerals and chemical preparations, which in part show, besides 

 polarisation figures, also dichroism, asterism, fluorescence, &c. Also prepara- 

 tions exhibiting interesting twin growths in closed crystals, and crystals 

 containing liquids in cavities. 



3469a. Russian Minerals taken from the educational col- 

 lection in the Mining School in St. Petersburg. 417 specimens, 

 value, ISO/. Mining School in St. Petersburg. 



1,2. Gold. Zineinogorsk, Altai. 



3. Silver. Zmeinogorsk, Altai. 



4. Salair, Altai. 



5. Nikolaievsk, Altai. 



6. Urjum, Siberia, 



7. 8, 9. Copper. Nishni-Turiinsk, 

 Ural. 



9a. Platinum. .Nishni-Tagilsk, 



Ural. 



96. Iridosmine (Newjanskite). Zla- 

 toust, Ural. 



10, 11. Meteoric 'iron (Ballassite) . 

 Krasnoiarsk, Siberia. 



11 bis. Tin. Yenisseisk, Siberia. 



12. Aerolite. Pultusk, Sedletz. 



13. Native sulphur. Kazan. 



14. 15. Graphite. Serdobol, Fin- 

 land. 



16. Graphite. Ilmen mountains, 

 Ural. 



17, 18. Graphite. Tunkinsk moun- 

 tains, Irkutsk. 



19. Stibnite. Serentujevsk, Nert- 

 chinsk. 



20. Molybdenite. Pitzaranta, Fin- 

 land. 



21. Molybdenite. Ilmen mountains, 

 Ural. 



22. Galenite. Zadonsk, Caucasus. 



23. Tellursilver. Zavodinsk, Altai. 



24. Bornite. Nishni-Tagilsk, UraL 



25. Sphalerite or Blende. Klitch- 

 kinsk, Nertchinsk. 



26. Chalcosite. Olonetz. 



27. 28. Chalcosite. Nishni-Turiinsk, 

 Ural. 



29. Cinnabar. Ildikansk, Nertchinsk. 



30. Pyrrhotite. Ersby, Finland. 



31. 32, 33, 34. Pyrite. Pitkaranta, 

 Finland. 



35. Pyrite. Riazan. 



36. Chalcopyrite. Beresovsk, Ural. 



37. Jamesonite. Algatchinsk, Nert- 

 chinsk. 



38. Pyrargyrite. Zmeinogorsk, Altai. 



39. Tetrahedrite. Beresovsk, Ural. 



40. Patrinite. Beresovsk, Ural. 



41. Rock salt. Astrakhan. 



42. Cerargyrite. Zmeinogorsk, Altai. 



43. Embolite. Michailovsk, Oren- 

 burg, Ural. 



44,45,46. Fluoride. Kadainsk, Nert- 

 chinsk. 



47. Fluorite (RatoJsite). Iver. 



48. Chiolite. Ilmen-mountains, Ural. 



49. Cuprite. Nishni-Tagilsk, Ural. 



