| 摘要 |
PURPOSE: A quartz porphyry mixture consisting of quartz porphyry of 425 meshes or more and tuff as main ingredients is provided which contains various minerals in a great quantity and is thus used as mineral waters when mixed with warm water of 40deg.C. CONSTITUTION: Quartz porphyry is ground into a size of 425 mesh or more and 80 to 90% by weight of quartz porphyry powder is mixed with 10 to 20% by weight of tuff powder. The proportion of Ge to the quartz porphyry powder is 0.3 or more.
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