Oh. XXVIII] 



OF VOLCANIC EOCKS. 



475 



ANALYSIS OF MINERALS MOST ABUNDANT IN THE VOLCANIC AND 

 HYPOGENE ROCKS. 



Man- 

 ganese, 



Actinolite (Bergman) - 

 Augite. black, of volcanic rocks 



(Klaproth). 

 Carbonate of lime (Biot) 

 Chiastolite (Landgrabe) - 

 Chlorite (Kobell) - 



(Delesse) .... 



of St. Gotthardt (Yarren- 



trapp). 

 Diallage of euphotide (Delesse) 



of bronzite from the Tyrol 



(Kohler). 

 Epidote (Vauquelin) 

 Felspar, common (Rose) 

 (Delesse) 



Albite (Rose) 



of a porphyry from 



the Vosges (Delesse). 



• Andesine, of syenite from 



the Tosges (Delesse). 



Labradorite (Klaproth) 



■ of Verde antique 



(Delesse) 



Oligoclase, of protogine 



from Mont Blanc (Delesse) 



■ Oligoclase of Arendal 



(Scheerer). 

 Garnet (Klaproth) • 



(Phillips) - 



Hornblende (Klaproth) - 

 — (BonsdorS) 



of orbicular diorite 



from Corsica (Delesse). 



Hypersthene (Klaproth) 



Leucite (Klaproth) - 



Malacolite or Sahlite, green (De- 

 lesse). 



Mesotype (Gehlen) - 

 (Berzelius) - 



Mica (Klaproth) 



(Vauquelin) - 



black (H. Rose) 



green, of protogine (Delesse) - 



reddish, of crystalline lime- 

 stone (Delesse). 



rose-colored, of granite (C. 



Gmelin). 



-white, of pegmatite (Delesse) - 



Olivine (Berzelius) - 



(Klaproth) - 



in meteoric stones (Klap- 

 roth). 

 Serpentine (Hisinger) - 



asbestiform (Delesse) 



*• common (Delesse) 



Steatite (Delesse) - 



(Vauquelin) - 



Talc, pure (Delesse) 

 (Klaproth) 



64 



4S-00 



22- 

 8*75 



3114 

 3107 



25-37 



49-30 

 5681 



37- 



66-75 

 64 91 

 6S-S4 

 71-50 



58-91 



5575 

 5320 



3575 

 43- 

 42- 

 45-69 



47-88 



54-25 



5375 

 5342 



51-64 



46-80 

 42.5 



50- 



40-00 

 41-22 

 37*54 



4906 



4623 

 40 86 

 50- 

 41-0 



43-07 



41-58 



40-as 



64-85 

 64- 

 6175 

 6175 



Tourmaline or Schorl, black, of 37'00 

 granite from Devon (Rammels- 

 berg). 



■ red, of granite from Mo- 



ravia (Rammelsberg). 

 Tonrmaline (Gmelin) 



3011 

 17-14 



15-47 

 28-79 



5-50 

 2*07 



21- 



175 

 19-16 



15-50 



24-59 



26 5 



27*31 



27-25 

 16 

 12 



12-18 

 823 



2-25 



24-6: 

 1-38 



19-70 

 26'50 

 11-5 

 35- 



1267 

 13*92 



19-80 



0-25 

 0-42 

 0*92 



3309 



41-83 

 34-75 



113 



34-40 

 19-14 

 17 09 



17 61 



29-68 



0-65 

 0-50 

 0-40 



1-01 



0-32 



traces 



2400 

 5633 



15-43 

 2-20 



15- 

 1*25 

 0-78 

 a trace 

 1-73 



4*01 



11- 



8-02 



323 

 361 



225 

 18-79 

 1840 



14* 



1495 



4-70 

 3032 



210 

 47 35 

 385 

 38-5 



40-37 



42-61 



37-98 



28-53 



22- 



31-68 



30-5 



2-58 



061 



4'CS 



20- 

 11- 

 13-85 

 7-05 



1-5 



21-72 



1-61 



9-87 



2-58 

 070 



0-5 

 1-50 



12- 



1107 



3-16 

 2-53 



3-40 

 2-31 

 1-39 



249 

 912 

 5-94 



7-59 



4- 

 3-52 



trace 



014 



10- 

 5*61 

 6 05 

 7-17 



4-19 



8-87 



15-09 

 540 



1-40 

 1-00 



275 

 0*65 



2*17 

 0-48 



1-37 

 1-75 



3- 



10-80 



3-85 

 19-99 

 2879 



24- 

 0*75 



traces 



traces 

 0-99 



1-25 



1-03 



traces 



1-89 



36- 

 16- 

 30- 

 7 32 

 16-15 



24-5 



53 



22- 



7- 



19-03 S 

 21-31 S 



503 P 



3-48 S 

 11-72 

 12- 

 18-5 



1-17 



1-69 



7-39 



1-40 



3- 



1-70 



2.5 



9-33 S 

 619 P 



17-44 



053 



traces 



0-51 

 0-62 



0-25 



0-22 



traces 



15-70 



^1-09 



010 



1-40 



traces 

 043 



4305 C. 



0-27 W. 

 12-20 W. 

 11-55 W. 



896 W. 



; 085 W. 

 030 Ch. 

 022 W. 



97- S, 

 1-89 



1-5 F. 

 150 loss 



9-83 W. 

 12-30 W. 



< 1-63 T. 



i 2-00 F. 



5 1-58 F. 



) 0-90 loss 



( 022 F. 



{ 151 loss 



f 3.59 L. 



J 3-28 F. 



1 011 P. 



1 4-18 loss 

 4-12 



12-45 W. 

 13*70 W. 

 10-70 W. 



5-22 W. 



5* W. 



383 W. 



f 012 P. 

 7-66 B. 

 2-09 loss. 

 1-49 F. 

 0*22 Ph. 

 356 B. 

 041 L. 

 2-70 F. 

 377 loss, 

 402 B. 



In the last column of the above Table, the following signs are used : B. Boracic acid, C. Carbonic acid 

 Ch. Oxide of Chrome, F. Fluoric acid, L. Lithine, P. Phosphoric acid, T. Oxide of Titanium, W. Water 

 In the 7th column of numbers, P. means Protoxide, and S. Sesquioxide. 



