886 Fall of a Meteoric Stone in Khaundes. [No. 155. 



Blowpipe Examination. 



The grass+green crystals above described: Per se infusible, but 

 take a rusty brown appearance, as of semi-fusion or oxidation, on the 

 exterior, remaining still translucent. On Platina Wire, with borax 

 and phosphate of soda, fuses at first in part only (a lump remaining), 

 giving a light clear olive glass; adding more of the flux it finally dis- 

 solves with various shades of olive and grass-green according to the 

 proportions of assay and flux. A minute crystal in Mur : acid does 

 not soften, gelatinise, or colour it by several days digestion. These are 

 doubtless Meteoric olivine. 



The white friable part, taken as free as possible from the grey specks 

 and entirely so from the green crystals. In the forceps slightly 

 oxidates to a rusty appearance at the outer part, but does not fuse. 



On Platina wire and with Soda. Fuses to a dirty olive coloured 

 bead, which in the reducing flame gives metallic iron with some 

 earthy residuum. With Nitrate of Cobalt only a dull rusty colour. 

 Hence the absence of Alumina, except perhaps in very minute pro- 

 portion. 



The metallic looking vein was assayed in various manners for 

 Nickel, but no trace of it could be elicited, the vein being apparently 

 pure pyrites. Nickel may nevertheless exist, though in small propor- 

 tions, and we cannot venture on consuming more of these precious frag- 

 ments, since the fused crust, the olivine, and the white matrix are 

 chemical evidence enough of meteoric origin of the stone. 



The whole of the dust which had collected in the paper, being care- 

 fully collected, was assayed both by the blowpipe and via humida for 

 Chromium, but no traces were detected. As said of Nickel however 

 above, so also of this substance : it may exist in minute proportion, 

 though not detectable in such extremely small assays. 



