284 Phillips — Gageite, Nexo Mineral from Franklin^ N. J, 



the walls of small cavities, not unlike the hahit of niillerite. 

 It may occur as a matt of interlocking crystals, or fan-shaped 

 groups. Under the microscope the prism angles seem to be 

 well developed, and several of the larger crystals are termi- 

 nated by a pyramid. While no measurements of tlie angles 

 have as yet been attempted, it is hoped that the crystalline ele- 

 ments and the important foruis may be established in the near 

 future from the material at hand. 



The specimens thus far found have been associated with crys- 

 talline zincite, green willemite, calcite, while leucophoenicite 

 has always been present, serving as a support for the gageite 

 crystals. The same combination of agencies which produced 

 leucophoenicite has also produced gageite, but as the ultimate 

 product of crystallization. 4^ ' 



Princeton, N. J., June 6, 1910. 



