Mineralogy. 



187 



In this way he obtained the results in the following table :— - 



Calcareous Spar 



Oligist Iron 



Quarts 



Apatite 



Beryl 



Emerald 



Corundum 



Iron (Oxiduls) 



RHOMBOIDS 



Weight of 

 Atom. 

 1262.7 



978.4 



596.4 

 1470.3 

 27523 

 16986 

 321.16 



Volume. 

 3.1643 

 4.6452 

 1.4318 

 4.280 

 6.956 



1.245 



Specific Gravity. 

 Calculated. Observed. 

 2.696 

 5.01-5.22 

 2.63 

 3.130 

 2.72 

 2.776 

 4.07 



II. REGULAR OCTOHEDRONS. 



2835.29 1.333 



Sulphuret of Iron 2966.1 1.333 4.728 



^Silver 



6211.06 2.00 

 Vol. of Rhomb. 

 Dodecahedron 



Sulphuret of Zinc 



Alum 



Amphigene 



Muriate of Ammonia 



Copper 



Silver 



5513.6 

 11870.77 

 _p" 15.37 

 8915.52" 

 1597-26 

 1344 



2.00 



2.00 



1.333 



1.333 



1.333 



1333 



6.808 



4.0C9 



1.772 



2.484 



1.566 



8.78 



10.44 



III. OCTOHEDRONS WTTH SQUARE BASE. 



Oxide of Tin 1870.58 2.945 



Meconite 5735.76 il.3412 2.648 



Idocrase (Siberia) 12530.6 9.6157 3.38 



IV. OCTOHEDRON WITH RHOMBIC BASE. 



Sulphate of Barytes 2916-18 



Topaz 7971-78 



Arragonke 1262.7 



Sulphate of Strontian 2296.9 



Lead 3791.3 



Carbonate of Lead 3339.3 



Epidote 10198.0 



Pediot 14800.13 



Cymophane 3670.8 



Sphene 23033.2 



Carbon. Copper Blue 8600.7 



Euclase 8072.9 



Copper Pyrites 2274.4 



Feldspar 7235.8 



Sulphate of Lime 21 64. 1 2 



iMagnesia 2643.4 



of Zinc 3133.1 



Carbonate of Soda 7 1 62.2 

 Fluate of Lime 3948.4 



Muriate of Soda 68C8.5 



1.4259 



3.1017 3.585 



0.39913 2.8972 



0.99321 



2.516 



2.3533 



3.915 



5.466 



1.5188 



8.462 



3.5830 



2.735 



L077 



2.037 



0.5062 



0.6758 



1.1718 



1.333 



1.333 



3.9G3 



7.082 



6.45 



3.519 



3.386 



3.792 



3.520 



3.818 



3.105 



4.34 



2.580 



1.756 

 1.977 

 1.477 

 3.095 

 2.082 

 Ann. 



4.946 



4.749 

 6.90 



4.061 



1.75 



2.468 



1.5-1.6 



8.78 



10.47 



6.934 



2.65 



3.39 



4.481 

 3.55 

 i 2.9267 

 ( 2897 

 3.958 

 6.0717 

 6.46 

 3.453 



3.441 

 3.796 

 3.51 



3.8 



3.063 



4.315 



2.578 



2.3117 



1.75 



2.0 



1.6 



3.09 



2.08 

 de Chim. 1824. 



