14 



CATALOGUE OF MINERALS. 



Name. 



System of 

 crystallization. 



250. Epidote 



2r)(i'. Pistacite * 

 2,')0'>. Zoisite* 

 250'=. Piedmontite 



2.51. Allanite * 



2.52. Partschin 



253. Zoisite Brooke 



254. Gadolinite 



255. Danburite f 



256. Axinite * 



257. lolite * 



25>^. Muscovite* 

 259. Phlogopite * 

 2G0. Biotite* 

 2(11. Astrophyllite 

 2i)2. Lepidomelane 



263. Lepidolite* 



264. Sodalite * 



265. Lapis Lazuli 



266. Hauyne 



267. Nosean 



268. Skolopsite 



R3gi4-2fiSi 

 (Ca,Fe)3Si + 2Xl§i 

 Ca3Si + 2ArSi 

 Ca'§i + 2(Sl,Mn)§i 

 ^fi'Si + fi'Si 

 (Fe,Mn)3Si4-XlSi 

 Ca^ Si + 2S1 Si 

 t(R»,S)§i| 

 Ca»Si + 3BSi 

 X (K», S, B) Si 

 (Mg,f^e)=»gi2+3Sl§i 



5. Mica Section. 



§(-r'5K^+HS)Sif 3 



3(K,Slg)»Si4-2Sl§i 3 



(K,Mg)3si + (3^1,Pe)Si 3? 

 K, Na, Ca, Fe, Mn, Ti, Al, Er, 5Pe, Si 



(K,Fe)3Si + 3(Xl,?'e)§i 3? 



(K,Li)Si+(Xl,5Pe)Si 3 



6. Feldspar Section. 



Na^'gi + SXl'Si + NaCl 1 



Na, Ca, XI, Pe, Si, S 1 



Na3Si + 3XrSi4-2Ca§ 1 



Na^gi-fSSlSi + JfaS 1 

 II il»§i^+;ilSi + iJfa§ 



* 1^ = Ca. Ce. La. Di. Fe. Mg. K = XlFe f ff = Ca. Ce. Fe. t. R = Se. 



J R = Ca. S = Xl.Pe. Mn. § fi = i^I. Pe. 



II R = Na. Ka. Ca. Mg. Sin. 



