444 



PROCEEDINGS OF THE ACADEMY OF 



[Aug., 



Carbonates : 

 Oxides; 2:3: 

 1:2: 

 double : 

 .hydroxy-: 



hydroxides : 



b. Metamorphosed^ 

 Sihcon oxides: 

 Feldspars : 



Metasilicates; pyroxenes: 



amphiboles : 

 barysilites : 



Orthosilicates; garnets: 



nephelites : 

 chrysolites: 



phenakites : 

 epidotes : 

 misc. : 



hydroxy-: 



hydrous : 

 Phosphates, etc.; anhydrous: 



hydrous : 



hydroxy- : 



ankerite, siderite 

 hematite 



polianite, pyrolusite 

 magnetite, hausmannite, braunite 

 bauxite, manganite, limonite, 

 goethite, xanthosiderite, turgite 

 psilomelane (including varieties) 



quartz 



microcline, albite, oligoclase, 



celsian 

 augite, schefferite, jeffersonite, 



urbanite, rhodonite 

 hornblende 

 barysilite, ganomalite, hardy- 



stonite, hyalotekite 

 andradite, spessartite 

 nasonite 

 tephroite, roepperite, glauco- 



chroite 

 trimerite, willemite, pyrosmalite 

 piedmontite, hancockite 

 harstigite, melanotekite, molyb- 



dophyllite 

 clinohedrite, roeblingite, leuco- 



phoenicite, bementite, karyo- 



pilite, neoticite 

 inesite, ganophyllite 

 carminite, tilasite, berzeliite, mo- 



nimolite, caryinite, ecdemite, 



beudantite 

 brandtite, vivianite, strengite, 



scorodite, phosphosiderite, bar- 



randite, koninckite, callainite 

 dufrenite, arseniosiderite, retzian, 



allactite, ludlamite, hemafibrite, 



wavellite, fischerite, evansite, 



peganite, spherite, pharmaco- 



^ The zinc deposits of Franklin Furnace, N. J., and the manganese deposits of 

 Longban, Sweden, are regarded as belonging here. 



