116 PHYSIOGRAPHY. 



Lustre resinous : upon the faces of cleavage semi- 

 metallic. Colour dark olive-green, passing into 

 brown. Streak light green. Slightly translu- 

 cent on the edges. 



Hardness = 4-5. Sp. Gr. =: 3-51 ... 3-60, KEATING. 



Before the blowpipe it melts easily into a black globule. 

 In heated nitro-muriatic acid one-tenth of it is dissolved, 

 and the residue assumes a lighter colour. It consists, ac- 

 cording to KEATING, of 



Silica 56-00. 



Lime 15-10. 



Protoxide of Manganese 13-50. 



Peroxide of Iron 10-00. 



Oxide of Zinc 1-00. 



Alumina 2-00. 



It occurs near Sparta, Sussex county, New Jersey, 

 along with octahedral and dodecahedral Iron-ore, dodeca- 

 hedral Garnet, Chondrodite, &c. It is very nearly allied 

 to the paratomous Augite-spar. 



KARPHOLITE. 



Karpholite. JAM. Man. p. 324. Karpholite or Carpho- 

 lite. PHILL. p. 22, 



Massive : composition thin columnar, scopiform 



and stellular, rather incoherent, meeting again in 



angularly granular compositions. 

 Lustre silky, colour high straw-yellow, sometimes 



approaching to wax-yellow. Opake. 

 The hardness appears to be low. Sp. Gr. = "935, 



BREITHAUPT. 



