102 THE DENILIQUIN OR BAERATTA METEORITE. 



of about three-quarters of an incli to one incli. Deeper in than 

 this, the structure is much more compact, and shows no_ traces of 

 lamination at all, but is granular, and contains numerous 

 spheroidal bodies. 



The freshly broken surface of the outer and laminated portion 

 is somewhat granular between the laminge, and presents numerous 

 bright yellowish- white metallic looking particles of irregular out- 

 line, some as distinct grains, and the rest forming a fine network 

 enclosing non-metallic matter within the meshes. Brittle. 

 Fragments readily scratch glass. 



Under a one-inch objective, this part of the meteorite presents 

 the appearance of an iron-black material of sub-metallic lustre, 

 with disseminated grains, and enclosing fibres of the previously 

 mentioned metallic-looking substance. Small grains of green 

 mineral resembling olivine are to be seen, also microscopic crystal- 

 line particles of a yellow mineral which also passes into brown. 

 In addition, there are some minute grey grains. 



The metallic -looking portions are attracted by the magnet. 



This outer part of the meteorite is magnetic, but not polar. 



Its powder is grey. 



The specific gravity of a portion of this portion was 3'382. 



As before remarked, the inner portion is not so fine-grained as 

 the crust; it has a distinctly chondritic structure ; some of the grains 

 are comparatively large, being ordinarilj'' about from one-sixteenth 

 to one-eighth of an inch across ; a few are a little larger. Many 

 are grey and earthy -looking ; other are brownish, and present a 

 somewhat crystalline appearance. 



The enclosing matrix has a slate-blue colour. The white 

 metallic-looking particles are present here also. 



The specific gravity of a fragment of this inner part of the 

 meteorite was 3"503, hence its specific gravity was '221 higher 

 than that of the outer portion. This difi"erence is not surprising 

 when we consider that the exterior has been subject to rather 

 difierent conditions, and has probably, amongst other changes, 

 undergone a greater degree of oxidation. Mr. Eussell took the 

 specific gravity of the main mass, weighing 145 pounds, and 

 found it to be 3387. "We therefore see that there must be con- 

 siderable difterences in the specific gravity of diiferent portions, 

 since the mean specific gravity of the crust and interior from the 

 above would be 3'412, instead of 3387. 



GRET GRANULES. 



A portion was freshly broken off" from this central part, as far 

 as possible from the fused crust ; was very tough and difficult 

 to break ; struck fire with the hammer, and emitted the usua ] 

 empyreumatic odour of rocks when struck. Out of this some of 

 the small gray granules were then carefully and laboriously 

 picked and cut out by means of a hard steel penknife ; a small 



