42 Brush and Dana—Fairfield County Minerals. 
of a thin section of this variety of som sper ie showed the quartz 
scattered as grains through the mas 
Deducting the pied from the analysis and calculating 
again to 100°61, we hav 
Atoms. 
P.O. 31°43 “331 “221 1 
AO, 21°83 “212 “212 1 
MnO - sah “316 
FeO 6°84 ‘096 -466 2 
Cad 3°01 054 
H,0 15°07 "837 837 4 
his is rary nearly the composition of eosphorite as analyzed 
Penie The excess of lime is in part due to the presence 
a ache which is found associated with much of the eosphor- 
ite. The compact mineral is simply eosphorite intimately 
mixed with quartz and other species found at the locality. 
The greener colored varieties contain dickinsonite and are 
somewhat more fusible than pure eosphorite, while the lighter 
colored varieties such as analyzed are more difficultly fusible. 
The density of these varieties varied from 2 ‘92—3°08. 
e name eosphorite i is from the Greek jae @mopos (a syno- 
nym of pwo@opos, whence the name phosphorus), which means 
dawn-bearing, in allusion to the characteristic pink color of the 
crystallized mine 
2. bee liga 
rh is yellowish to reddish- broWit in the distinct —— also 
- to wine-yellow, and occasionally hyacinth-red. The 
preak i is nearly white. Transparent to translucent. The frac- 
ture is subconchoidal. 
