schulzite (z as tz)

(After W. Schulz; suff. -ite ( Min.).] Min.: The same as GEOCRONITE (q. v.). schung-ite, s. [After Schunga, Olonetz, Ru ia, where found; suff. -ite ( Min. ). ] Min.: An amorphous variety of carbon, differing somewhat from anthracite in its chemical composition and physical properties. schwan-pan, 8. [Native name.] Chinese abacus. schwartz-em-bêrg-ite, s . [After Schwartzemberg, who discovered it; suff. -ite ( Min .).] Min .: A mineral forming crystalline and amorphous crusts on galena (q.v.) in the desert of Atacama, South America. Crystallization, rhombohedral. Hardne , 2-2.5; specific gravity, 5-7-6-3; luster, adamantine; color and streak, shades of yellow. Composition: An oxychloro-iodide of lead with the probable formula, Pb(I,Cl)+2PbO.