TABLES. 



407 



Table D. — Classification of alterations, with volume changes — Continued. 

 SILICATION AND DECARBONATION. 



Volume 

 change. 



Ankerite or parankerite, quartz . 



Do 



Do 



Aetinolite 



Aotinolite, caloite . 

 Sahlite 



Bronzite or hypersthene, calcite, quartz . . 



Aotinolite 



Calcite Wollastonite 



Caleite, quartz ; do 



Dolomite i Diopside 



Dolomite, quartz do 



Dolomite Tremolite, caleite 



Dolomite, quartz do 



Dolomite Tremolite, wollastonite. 



do 



Tremolite 



Aetinolite 



Titanite 



Griinerite 



Dolomite, quartz 



Forsterite, calcite, quartz 

 Olivine, calcite, quartz . . 

 Rutile, calcite, quartz.. . 

 Siderite, quartz 



Per cent. 

 -32. 72 

 —22. 62 

 -37. 27 

 a— 10. 77 

 t>— 7.40 

 +10. 81 

 -31.48 

 + 2.03 

 -40. 11 

 4- 9.89 

 -25. 20 

 +14. 00 

 -33. 09 

 —12. 29 

 -13.34 

 —28. 17 

 -32. 53 



SILICATION AND DEHYDRATION. 



Analcite, quartz : Albite 



Diaspore, quartz Cyanite . . . 



Do Sillimanite. 



Gibbsite, quartz. Cyanite . . . 



Do Sillimanite. 



-17.25 

 -22. 61 

 -13. 52 

 -49. 61 

 -43. 68 



SILICATION, DEHYDRATION, AND DECARBONATION. 



Diaspore, quartz, calcite . 

 Do 



Diaspore, quartz, K 2 C0 3 . 



Gibbsite, quartz, calcite . 



Do 



Gibbsite, quartz, K 2 C0 3 . 



Margarite. 



Zoisite 



Muscovite 

 Margarite. 



Zoisite 



Muscovite 



-14.08 

 -29. 44 

 -54. 21 

 -38. 92 

 -43. 06 

 -64. 99 



aSp. gr. bronzite. 



6 Sp. gr. hypersthene. 



