Show I I i i Apatite in tho the Teeth Apatite appropriately appropriate enough is isone isone isone one of the tite constituents of teeth it appears from a report of the superintendent su suo ent or of the ph physics department de d of the National Ph laboratory Lon London on England In In normal teeth the enamel consists of ot apatite cr crystals to together elhel with a second cr crystalline substance at present unidentified the report states The National Physics laboratory laboratory lab lab- oratory has bas been making a preliminary prelim inary mary stud study of the crystal structure of teeth at the thu request of dental research board Apatite Is not an emotion but a mineral ma made c up of calcium fluorine fluorine flue flue- rine rise and phosphorous It occurs In various colored colore sided six cr crystals It Is a common source of ph phosphorus os and the mineral is exported export export- ed as fertilizer by Norway and Cann Canada KanSaS Kansas a.-Kansas Kansas City CUy Stars Star's ScIence Science Sc- Sc ence service I |