60 Mineralogical Notices by Prof. Meneghini. 
Art. X.—Mineralogical Notices ; by Prof. Menecuint of Pisa.* 
matin: Proressor C. Becut, one of my friends, is about 
sablistiind: some analyses of Tuscan minerals in our official re- 
port, and as they will be nearly lost to science in the large vol- 
ume, I take the liberty of transcribing for you in brief, our ob- 
servations. The analyses are by Prof. Bechi. 
alena.—Of the following galenas, No. 1, is a coarse granular 
variety from Bottino near pints ; a 3, fine granular, from 
the same locality; 4, fine granular from Ar rgentiera in Val di 
Castello; 5, cntaboden oes (Jargionite of M. Bechi) from the 
same loc ality. 
*S Pb Sb Fe Cu Zn Ag 
1. 12840 80-700 8307 1:3477 0-440 0-024 0325 == 99:01 
2. 15-245 48-238 4-431 1:828 trace as 0485 == 100-227 
3. 15503 78-284 2452 2811 huni 0560 = 99°610 
4, 16-780 72-440 4308 1855 4251 isc 650 == 100284 
5. 15°62 72:90 577 1:77 Ll 1:38 072 = 99-22 
The last variety appears to resemble Bleischweif and is prob- 
ably identical with Steinmannite. Its specific gravity is actually 
6932. 
Fah in fine crystals is found at Angina, Val di Castello. 
sAnipaio dagiesing ee with that by Kersten), 
s Sb Zn He Fe Ag 
241413 265240 sri 62311 $0313 16360 04500 = 99-7309 
eather ore (Heteromorphite), Rlieeect, Sabi Jamesonite and 
Meneghinite from Bottino. Analyse 
Ss Sb Pb Cu. «Zn Fe 
}18a95 30186 47-681 1110 1085 0-255 = 99-712 
2. Aci nt 19250 29244 49311 2000 0-211 = 100016 
eres weil 17-994 26°085 phen 1242 “4 0350 = 100-282 
17-822 “740 390 = 1°250 0-230 = 101-517 
5. Capillary . Jamesonite, 20°5335 32° iene as 8880 - “2453 : 7856 —— 100 
6. Meneghinite, 17622 19284 59214 3-540 0344 —= 99-904 
1, Capillary Hetero- 
A third variety of the Boulangerite is fibrous ¢ 
three forms are very distinct, and the last 
Zinkenite ; the analyses conduct close] 
3PbS+ 
formula, SbS*. The external characters of the Jame- 
sonite are those of Heteromorphite, 
formula of Jamesonite 3 PbS+2S8b 8; 
7 
2-6. 
anal SbS? 
Ge anticad S+ ; a compound hith- 
Scnrompeneserrete 
