INTRODUCTION. 



Idocrase. 



Egeran. 



Frugardite. 



Jeflfreinowite^ 



Protherite. 



XantWte. 



Hydrous. 



Teratolite. 

 Delessite, 



Grengesite. 



Baralite. 



Silicates of Alumina, Lime, 

 Magnesia, Iron, and Al- 

 kalies. 



Anhydrous. 



Mellilite. 



Somervillite. 

 Zurlite. 

 Humboldtilite. 

 Wichtisite. 

 Sordawalite. 



Biaxial or Potash Mica. 

 Muscovite, or Muscovy 

 Glass. 



Margarodite. 

 r Damourite. 

 Paragonite. 



Uniaxial Mica, or Biotite. 



Meroxene. 

 Rubellane. 

 Voigtite. 



Lepidomelane. 



Phlogopite, or Rhombic 

 Mica. 



Hydrous. 

 Clintonite. 



Disterrite. 

 Brandisite. 

 Seybertite. 

 Xanthophylbte. 



Palagonite, or Hydrous 

 Scapolite. 



Notite. 



Skolopsite. 

 Green Earth. 



Kirwanite. 

 Anhydrous Silicates ofAhc- 



mina. Lime, and Yttna. 

 Pistacite, or Lime andlron- 



Epidote. 



Arendalite. 

 Bucklandite. ;i 



Puschkinite. 

 Achmatite. 

 Thallite. 

 Rosstrevorite, 



Zygadite. 



Anhydrous Silicates ofAlu- 



tnina, Potash, Lithia, 8fc. 



Lithia-Mica, or Lepidolite. 



Zinnwaldite. 



Weissigite. 



Anhydrous Silicate of Alu- 

 mina and Manganese. 



Manganese Garnet, orSpes- 

 sartine. 



Hydrous Silicate of Alu' 

 mina, Manganese, and 

 Iron. 



Carpholite. 



Anhydrous Silicates of Alu- 

 mina, 8j-c. with Boracic 

 Acid. 



Tourmaline. 

 Rubellane. 



Aphrizite. 

 Schorl. 

 Zeuxite. 



Anhydrous Silicates of Alu- 

 mina, Lime, and Boracic 

 Acid. 



Axinite. 



Danburite. 



Anhydrous Silicate of Alu- 

 mina, Titanic Acid, Yt- 

 tria. Lime, 8fc. 



Keilhauite. 



Hydrous Silicate of Alu- 

 mina, Chromium, Sfc. 



Chrome Ochre. 



Anhydrous Silicate of Alu- 

 mina. Magnesia, and Al- 

 kalies. 



Anhydrous Silicates of Alu- 

 mina and Lithia. 



Spodumene. 



Killinite. 

 Castor. 



Anhydrous Silicate of Alu- 

 mina, Lithia, and Soda. 

 Petalite. 



Anhydrous Silicates of Alu- 

 mina and Glucina. 

 Emerald. 

 Beryl. 



Aquamarine. 

 Davidsonite. 

 Goshenite. 



Euclase. 



Anhydrous Silicate of Glu- 



citia and Lime. 

 Leucophane. 



Silicates of Zirconia, ^c. 

 Anhydrous. 

 Zircon. 



Jargoon. 



Jacynth, or Hyacinth. 



Zirconite. 



Ostranite. 



Erdmannite. ^ 



Malacone. 



Tachyaphaltite. 



Calyptolite. 

 Auerbachite. 

 Eudyalite. 



Eukolite. 



Hydrous. 

 Catapleiite. 



Hydrous Silicate ofThoria. 

 Thorite. 



Hydrous Silicate of Cerium, 

 Lanthanium, Didymium, 

 &;c. 



Mosandrite. 



Pegmatolite. 



