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Capala can be killed by puṭapaāka by combining with sora (girimastaka borax)1. Its powder can be purified by saturation with the juice of lemon, Vandhyakakarkoṭaki and ginger. If its essence is to be taken out, rub it in the decoction of Kanji, Vatsanabha and Upavisas and make pill (or ball), next heat it in a closed crucible.
Rub capala in these medicines, make pill of it medicines, make pill of it and put it in Sarava samputa, cover it up with cloth and clay and heat it in gajapuṭagni, then it will turn into best ash.
Kharpara of Rasaka1 (Calamina)
Khapara is mentioned in the Suvarṇa-Raupya-Siddhi-Sastra and Samuccaya of Māṇikyadevasūri as one of the superior minerals used for various chemical processes. According to the Rasarṇava, there are three kinds of Rasaka.-mṛttikārāsaka, guḍarasaka pāṣāṇarasaka. Calamine which is like yellow earth is the best of all, that which is of the colour of molasses is medium and that which is like stone is of the lowest type.5
The Rasaratnasamuccaya of Vägbhata refers to two kinds of calamine, viz., Dardura and Karavellaka dardura. The first one is laminated structure and the second is non-laminated. Dardura is good for sattapātana and Karavellaka is best in auṣadhakarma.6
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1. Marayet putapakena capalam girimastake, Rasārņṇava 7/126.
2. Jambirakarkotakasṛngaverairvibhāvanābhiścapalasya şuddhiḥ /
Sailam tu culṇayitya tu dhanyamlopaviṣaiviṣaiḥ / Pindam baddhvā tu vidhivatpatayet ccapalam tatha // Rs. 2/140-141.
3.
SRSS., 1. 7, 11., 24, 44, 45; 2-1; 3, 14, 20, 57, 77, 84, 85. 104; 105, 4, 9, 28; 6.36; 7.23; 8.27, 8, 34, 9.53; 10.1, 11.25, 36; 11, 2, 4; 12.22, 30, 13.2. 2.
4. Rs., Vägbhata, 2: 40-41.
5.
6.
Mrttikaguḍapāṇabhedato rasakastridha, Pitastu mṛttikakaro mṛttikārasako varaḥ// Guḍābho madhyamo jñeyaḥ pāṣaṇābhaḥ kaṇiṣṭhakaḥ //, Rasarṇava 7. 28-29.
Rasako dvividhaḥ prokto darduraḥ, Karavellakaḥ / Sadalah darduraḥ prokto niruḍhaḥ karavellakḥ Sattvapāte subhaḥ purvo dvitrya ścausadhadiṣu / Rs,, 2/140-142
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