Organic Acids in the Examination of Minerals. 



MINERAL. 



Wollastonite.. 



Diopside 



Augite 



Ehodonite 



Spodumene 



Hornblende... 



Chrysolite 



Olivine 



Willemite 



Almandite 



Epidote 



Biotite 



Muscovite 



Wernerite 



Labradorite . . . 



Albite 



Orthoclase 



Chondrodite. . . 

 Tourmaline . . . 



Kyanite 



Datolite 



Pectolite 



Chrysocolla . . . 



Calamine 



Prehnite 



Apophyllite . . . 



Natrolite, (1) . . . 



(2)... 



Analcite 



Chabazite 



Stilbite 



Talc 



Serpentine 



Retinalite 



Chrysotile 



Deweylite 



Ripidolite 



[Ninety 



V. SILICATES. 

 Formula. Description. Locality. 



CaSi 



(Ca Mg) Si 



(CaMgFe)(SiAF) 



MnSi 



R 3 Si 3 + AM Si 3 



(K«) (SiAl 1 ) 



(Mg Fe) a Si 



(Mg Fe) a Si 



Zn a Si 



(iFe 3 + iA4) a Si 3 



[JOa 3 + |(AlFe)] Si s 



HMgK) 3 + KAlier Si' 



(R 3 R : ) 3 Si 3 + fSi 



Q(NaCa) 3 + §Al] a Si 3 + Si 



[1 (Ca Na) 3 + l'A4] a + fSi 3 



(iNa 3 + |Al) a Si 3 + 6Si 



(iK 3 + fA4) a Si 3 + 6Si 



Mg 8 Si 3 [Fl] 



(R 3 R B> Si" [Fl] 



A4Si 



(Ca 3 H 3 B) Si 



(*Ca + JNa + |H) Si 



Cu Si + 2H 



Zn a Si + H 



QH 3 + fCa 3 +|Al) a Si 3 



fibrous Natural Bridge, N. Y. 



crystals Tyrol. 



crystals Sicily. 



massive Franklin , N. J. 



crystals Windham, Me. 



massive New York City. 



massive North Carolina. 



granular Sandwich Islands. 



massive Franklin, N. J. 



crystals Sterling, N. J. 



massive Ducktown, Tenn. 



lamina? Westchester Co., N.Y. 



laminse North Carolina. 



massive Gouverneur, N. Y. 



massive Turin, N. Y. 



massive Yancey Co., N. C. 



massive New York City. 



crystals Sparta, N. J. 



black crystals New York City. 



crystals Buncombe Co., N. C. 



crystals Lake Superior. 



crystals Bergen, N. J. 



massive Lake Superior. 



crystalline Friedensville, Pa. 



uniform, massive.Scotland. 



[iH + i (IK + !Ca)] a Si + H Si crystals Bergen, N. J. 



3Si, A4, Na, 2H dark, massive Wurttemberg. 



white, fibrous Bergen, N. J. 



fine crystals . . . . Lake Superior. 



crystals Nova Scotia. 



crystals Nova Scotia. 



massive North Carolina. 



massive Newburyport, Mass. 



waxy, transl Montville, N. J. 



silky, fibrous Montville, N. J. 



massive, transl. . .Rye, N. Y. 

 laminae North Carolina. 



4Si, AJ, Na 2H 



4Si, A4 [iCa + J (Na K)] 6H 



6Si, A4, Ca, 6H 



QS + iMg) Si 



Mg»Si + H 



Mg a Si + H 



Mg 3 Si + H 



GMg + |H) a Si + JH 



8(|Mg 3 + |AlFe)9Si, 12H 



Species, one hundred and twenty Specimens.] 



