E. MINERALOGY AND GEOLOGY. I93 



mite as soon as the remaining ingredients are ascertained. 

 16 A, October, 1872, 521. 



MANGANOPHYLL, A NEW MICA. 



Igelstroni has described a new species of mica from the 

 iron and manganese mine of Pajsberg, Sweden, under the 

 name of mangant)phyll. This contains 21.4 per cent, of pro- 

 toxide of manganese, and is consequently the richest manga- 

 nese mica hitherto known. It is suggested that it is very 

 closely allied to alurgite, and that the two species may be 

 possibly identical. It possesses a color varying from bronze 

 to copper red, and appears to crystallize in the hexagonal 

 system. 16 A, October, 1872, 521. 



KRYOKONITE, A GLACIER DEPOSIT. 



Under the name of Kryokonite, Professor Nordenskjold in- 

 troduces to notice a peculiar deposit in the form of a gray 

 powder, often agglomerated into small globular masses, which 

 occurs at the bottom of holes in the ice of Greenland. The 

 origin of this ice-dust is enigmatical, and the discoverer seems 

 undetermined as to whether it is of meteoric origin, or comes 

 from the basalt region near the coast, or from the supposed 

 volcanic tracts in the interior of Greenland. 16 A, October, 

 1872,521. 



ZEUNEEITE, A NEW MINERAL. 



Among the minerals recently worked out at Schneeburg, 

 in Saxony, Professor Weisbach, of Freiburg, has found what 

 he considers to be a new species, and has called it Zeimerite. 

 This is an arsenite resembling copper uranite in its grass-green 

 color and its crystalline form, but differs in the fact that it is 

 an arsenite instead of a phosphate. 16 A, October, 1872, 521. 



SYNGENITE, A NEW MINERAL. 



A new mineral has been lately described by Professor Zeph- 

 arovich, from the potash beds of the salt mines of Kalusz, in 

 Galicia. This, which has been named Syngenite, occurs in 

 cubes of sylvine, in colorless, pellucid crystals, somewhat re- 

 sembling selenite. It is very closely allied to polyhalite. 

 13 ^, Oc^oJer 15, 1872, 391. 



I 



