Atomic Volume of some Minerals. 241 
I defer for another occasion what had been prepared upon the 
monometric species, and conclude with a table of the results here 
published, and a brief enunciation of some of the conclusions 
flowing from the facts detailed. 
A TABULAR VIEW OF THE RESULTS, 
The relations of atomic volume will be at once apparent from 
the following table; 1, as exhibited in the column of aggregate 
atomic volumes (column A),—2, in that of the aggregate divided 
by the number of atoms of acids and bases (column B),—3, that of 
the eEproeue divided by the number of atoms of the elements 
(column 
1. Crystallization clinometric. 
x. B. C. 
in ame monoclinic, Ist var., (Ca, Mg)3 Siz, 637° 127-4 45°5 
(Ca, Mg, Fe)3 Si2, 6452 129% 46°1 
i var., (Hedenbergite,) 673'4 1384-7 48-1 
4th var., (Hudsonite,) 7060 141-2 48-9 
5th var., Fe3 Si2, 6747 135 48°2 
6th var., Mn3 §i2, 6848 1369 48-9 
2. Acmite, monoclinic, 9185 183°7 48°34 
8. Hornblende, “ 1st var., 9716 1388 48°58 
2d var., aporger mary 155°95 47°25 
8d var Og ik 1384 48°43 
4th var. oe 1440 48°04 
4. Borax, sanaactbals 189176 107°0 46°38 
5. Glauber salt, “ 1290 10754 49°6 
1. Epidote, monoclinic, 1268 1585 45°285 
2. Zoisite, 1237 1546 44-2 
3. Orthite of the bday, - amo 1921: 1478 48-025 
4, Orthite of Hitte 1017° 145°3 48°43 
1, Orthoclase, sce 1388° 231°3 604 
2. Ryacolite 867° 2167 578 
8. Lox ashi “ 1063" 2126 560 
4, Bauli Ms 21781 21781 55°85 
5. Albite, triclinic, 12804 2134 55°67 
6. Labradorite, « 7955 1989 08 
7. Oligoclase, « 1038°3 20766 54°647 
8. Anorthite,  “ 1959 1959 52°95 
9. Vosgit 21665 «197° 52°84 
10. Andesine,  « 29124 208 55°0 
ll. Petalite, “ ‘ 6071°8 224°96 57°83 
1. Kyanite, teiclinn 4 Biz, 85083 170165 870 
2. Bucholzite, « 35856 17928 39°84 
8. Sillimanite, X16 ae Abe analysis), 1915°8 1742 38°32 
1. Chromate of lead, monoclinic, 333°8 1669 556 
2. Monazi « 61725 =164°3 5144 
? 
Srconp Szries, Vol. [X, No. 26.—March, 1850. $1 
panes 
