396 



A TREATISE ON METAMOEPHISM. 



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

 OARBONATION. 



Biotite I Epidote, spinel, quartz 



Biotite, hematite do 



Serpentine ! Magnesite, quartz 



- 14.71 



— 18.15 

 + 18.84 



OARBONATION AND DEOXIDATION. 



Magnetite ! Siderite 



+ 101.30 



OARBONATION, DEOXIDATION, AND DEHYDRATION. 



Limonite Siderite 



OARBONATION AND DESILICATION. 



Almandite, melanite, and pyrope . 



Grossularite - 



Melanite (see Almandite). 

 Pyrope (see Almandite). 



Serpentine 



Titanite 



Do 



Hornblende, calcite, quartz . 

 Meionite, calcite, quartz 



Magnesite, brucite, quartz . 

 Octahedrite, calcite, quartz. 

 Rutile, calcite, quartz 



