On the chemical composition of childrenite

S. L. Penfield
1880 American Journal of Science  
AFTER the publication by Messrs. Brush and Dana* of their paper in which the new species, eosphorite, was described and shown to be closely related both physically and chemically to childrenite, they proposed to me to make a new investigation of the compol:lition of the latter species with a view to deciding the uncertainty in regard to its true formula. Professor Brush ver.Y kindly placed at my disposal a suitable specimen from Tavistock out of his collect ion. From this the material for the
more » ... material for the following analysis was taken. The crystals were small, of a yellow-brown color, and were very carefully picked
doi:10.2475/ajs.s3-19.112.315 fatcat:lq5d2ct3jnavzirpfdwmoap3di