MERRILL] METEOR CRATER OF CANYON DIABEO, ARIZONA 483 



hexagonal plates which analysis showed to be a silicide of carbon. 

 Kunz later proposed that this mineral be named Moissanite, in honor 

 of its discoverer. 



The complete mineralogical composition of the meteorite as given 

 by these various writers, including Mr. Tassin, is, then, as follows: 



Nickel iron : 



(1) Kamacite. 



(2) Plessite. 



(3) Tsenite. 

 Phosphide of iron : 



(1) Schreibersite. 



(2) Rhabdite. 



(3) A black phosphide, unidentified. 

 Carbide of iron : 



(1) Cohenite. 



(2) Graphitic iron (?) 

 Sulphide of iron : 



(1) Troilite. 

 Chloride of iron : 



(1) Lawrencite. 

 Silicide of carbon : 



(l) Moissanite (Moissan). 

 Carbon : 



(1) Diamonds, colorless, yellow and black. 



(2) Cliftonite. 



(3) Amorphous. 



(4) Graphite. 

 Silicon (Tassin). 

 Platinum (Mallett). 

 Copper (Derby). 



Olivine (very rare) (Tassin). 

 Chromite (Tassin). 

 Fayalite (?) (Tassm). 

 Daubreelite (Foote and Derby). 



Of the several partial and complete analyses of the iron that have 

 been published, the following are selected, No. I being by Moissan, 

 No. 2 by Booth, Garrett, and Blair, and Nos. 3 and 4 by Wirt 

 Tassin, No. 4 being that of a shale-ball iron next to be described : 



