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If it is put into the decoction of Triphala by making it red hot in fire, it gets purified.
If the ash of golden pyrite is to be made, mix equal part of sulphur into its powder, make pill of it by rubbing it in the juice of citus medica and vārāhapu ça (roasting in Diascorea) is given to it five times by putting it into a crucible.
Mix 30 (th) part of lead into the powedr of golden pyrite and rub it with kşāravarga (alkalines) and amlavarga (acids), and make pill of it. Then heat it in the flame of coal by putting it into a crucible. The essence of golden pyrite is obtained by this process.3
Dravaņa of golden pyrite takes place by the process of rubbing the castor oil, powder of guñjā (Abrus precatorius), honey and borax together and melting the essence of it on fire and putting the mixture into it.
Amala5 or Vimala (A kind of silvery pyrite)
Some Ācāryas say that Vimala is a kind of Silvery pyrite. It is of three kinds-white, yellow and red or7 hemavimala (golden), taravimala, (silvery), and kāṁsyavimala (bell-metal like) according as it has the lustre of gold, silver and bell-metal respectively.
It is round and is alsu endowed with angles and faces. 8
1. Matulungambugandhabhyām piştam mūso-dare sthitam / Pamcakro
daputa dagdham mriyate khalu”, Ibid. 2–79. 2. Matulungaṁbugandhabhyam piştaṁ mūsodard sthitem /
Pamcakroņapuța dagdham mriyate khalu.” Ibid. 2-79. 3. Triņšāṁšanāgasamyukatam Kşārairamlaiśca marditam / Dhmātam
prakaçamūṣāyām sattvam muñcati mākşikam || Ibid., 2/81. 4. Eraạļotthena tailena gúñjā kņaudram ca tarikaņam /
Marditam tasya vāpena sattvam māksikajam dravet // Ibid., 2/88. 5. Amala or Vimala is not clearly mentioned in the Suvarna-Raupya
Siddhi-sastra, but it finds mention as amala in the Rasaratna Samucc
aya of Mānikyadevasūri (1. 54). 6. It is referred to in the Rasārņava (7/151) & the Rasaratnasamuccaya
of Vägbhat (2. 90) as vimala-one of Mahārasa. 7. Vimalastrividho devi ! śuklaḥ pitaśca lohitaḥ” Rasārņava 7/15
Rasaratna Samuccaya. 2/89 Vāgbhat. 8. Vartulaḥ koņasamyuktaḥ sạigdhaśca phalakānvitah / Ibid., 2/90
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