Rasendracudamani 10.59

10.59

{dhātu (gen.):: śodhana}
sūryāvarttakavajrakandakadalīkoṣātakīśigrukāḥ /
vandhyā nīrakaṇā ghanā nṛpaśamī dhvāṃkṣī kumārī varā /
āsām ekarasena sāmlapuṭanācchudhyanti dhātvādayaḥ /
svedakledavadhānvrajanti ca punardhmātāśca sattvāni te //

Minerals (general): purification:
Sūryāvarta, vajrakanda, plantain, koṣātakī, śigru, / vandhyā, nīrakaṇā, mustā, nṛpaśamī, dhvāṅkṣī, kumārī, and triphalā: / by calcination with the sour juice of any one of these, minerals and the like are purified; / and being blown [with heat], they undergo sweating, moistening, and killing, and become metallic essences.