The Paragenetic Relations of Minerals. 



91 



Labrador, . 

 Lode quartz, 



Garnet (aplome), 

 Garnet (riraosus), 

 Agalmatolite, 

 Iron pyrites, 



Copper pyrites, . 



Magnetic pyrites, 

 Copper glance, . 



II. Sedimentary Rocks 

 Rock salt, . 

 Gypsum, . 



Crystalline limestone, 

 exclusive of the primi- 

 tive limestones, 



Compact limestone with- 

 out lustre, likewise as 

 marl, 



Dolomite, . 



Anhydrite, 

 Astrite* slate, . 



Talc- slate — the absence 

 of quartz is here like- 

 wise remarkable, 



Hornblende slate 



(quartz absent), 

 Clay slate, 



An astrite, corundum. 



Pyrophylite, iron pyrites, and a great num- 

 ber of the metalliferous minerals occur- 

 ring in lodes. 



Scapolite (Arendal.) 



Ilmenite. 



Diaspore. 



Glassy actinolite, quartz with a fatty 

 lustre and in rounded crystals (Boden- 

 mais, Bavaria), gelbnickelkies (Dillen- 

 burg, Nassau). 



Aplome, iron pyrites, tesseral pyrites, 

 heavy cobalt glance. 



An amphibole, iron pyrites, copper pyrites. 



Iron pyrites. 



Glauberite, anhydrite. 



Rock salt, crystals of gypsum, tharandite, 

 arragonite,boracite, quartz, iron pyrites, 

 sulphur. 



Calcite, meroxene, wollastonite, couzeran- 

 ite, glassy actinolite, pyreneit, magnet- 

 ite, iron pyrites, heavy cobalt glance. 



} Calcite, coccolite, quartz, iron pyrites, 

 sulphur. 



Dolomite, tremolite, tourmaline, corundum 

 (Airolo, Switzerland), iron pyrites. 



Rock salt, boracite, sulphur. 



Dolomite, breunerite, apatite, talc, glassy 

 actinolite and other amphiboles, pista- 

 cite, diopsid, garnet, beryl, several tour- 

 malines, titanite, magnetite, iron py- 

 rites, mispickel. 



Dolomite, breunerite, glassy actinolite, 

 disthene, galenite, dichroite, and pseudo- 

 morpus derived from it, as fahlunite, 

 magnetite, iron pyrites, arsenical pyrites. 



Garnet, magnetite. 



Amphibole altered to substances resem- 

 bling serpentine and alusite, generally 

 in the altered varieties called chiarto- 

 lite, iron pyrites, mispickel, leucopyrite, 

 gold. 



* Breithaupt applies this term to the astrite or mica, with one optical axis, 

 which occurs as a rock without being in all cases chlorite. The chlorite slate 

 is included. Quartz is usually altogether absent. 



