Quartz from the Jiehe gold deposits of Shaddong Province was studied in such aspects as chemical composition, unit cell parameters, spontaneous thermoluminescence, infrared absorption spectra, inclusions and oxygen isotopic analyses, and the following results have been obtained; it is rich in Al, K，Na and has high content of impurities; a0 and c0 are both larger than the theoretic values; except for quartz from Guojialing granodiorite, spontaneous thermoluminescent analyses are all of bimodal type, with the intensity growing from I to III metallogenic stage; D2/D1 of infrared absorption spectra increases in order of 0.17->0.17->0.28 from barren rock through lean ore to rich ore; inclusions are rich in K，Na, Cl, F, CO2 and H2O, with pH being 7.08-7.13 and Eh -6.1 - -6.2 V, indicating that they were formed under the neutral to somewhat alkaline reducing conditions which were favorable for gold precipitaEion; oxygen isotopes vary in a narrow range(11 .07‰-11.57‰)，exhibiting characteristics of both magmatic water and meteoric water, with magmatic water being dominant. Mineralogic mapping based on integral intensity shows that orebodies are all included in the area of integral intensity larger than 4，and that>10 indicates rich ore whereas <4 means wall rocks. Orebodies expand and branch toward the depth. Accordiaig to the map, three orebodies were predicted, of which the largest one some 110m from the principal fault has been proved to be true. Mapping based on spontaneous thermoluminescent integral intensity of quartz has the advantages of saving labor, time and money, and can thus be widely used in the prospecting for altered rock type gold deposits and other ore deposits.