Tenth Supplement to Dana's Mineralogy. 221 



remarks that the exact locality of this variety, as well as that under VII, is nncer- 



crplals frequently enclosed thin blades of kyanite, so that great care was required 

 to obtain pure mineral— IV. Franconia, New Hampshire. Large crystals, enclo.=^mg 

 garnets; color, brown on the edges. G.=3-764.— V. Goldenstein, in Moravia, 

 with single small garnets. The staurotide resembles the St. Gotthardt variety in 

 translucency, but the crystals are often covered externally with mica. Streak, yel- 



V^I. Airolo. Thes 



analyzed by Jacobson. Black crystals in a gray mica 



New Hai 

 garnets 



inded edges. G,=3- 



.yellowish-gr'ay. 



B J 4- FrancoTiia, 35-36 48 67 *2-27 



15. Golden.tein, 35-15 44-02 83 



16. Litchfield, Ct., 86-92 42-92 1-85 



a :K: Si or ft,fi:Si 



9= 99-96 



:Si or RStgi 



Rammelsberg classifies these under four heads: (A,) '"^^^'j^^'^^J'^^J^'J^ti^^nlJ^JJ;^^^^^ 

 ft ''thffelSt UrSe^tils^'similar' trthT is'lmorptL'^^L'Xrr^rthVLldrpar group" 

 nfn_"l^?™"l^. "^V h^r'."^";,(.^:illt!r;o Mineralogy,- a description ai>d 



Journal, 

 fa yel- 



Pef and lead ores. ' The mean result of three closely agreeing analyses was. 



Si Ti XI Pe 2n Sin *« ^" ^ J^: _ 100 



2882 0-84 49-21 951 7 13 015 3 22 tr. 1 47 - 100 



'^^^< when comnarpH ^ith fh« above mentioned results of Raramelsberg, si 



^e protoxyd of iron is replaced by zinc. 

 SZAIBELYITE (K. F. Peter,, Be>: Wien. Ahad., xliv 

 ^'^ an exceedingly interesting borate in a gray granular 



