Anandakanda 2.8.188

2.8.188

pūrvavaddhamanātsatvamindragopanibhaṃ bhavet /
<vaikrāntasattva (3)>
vandhyācūrṇaṃ savaikrāntaṃ chāyāyāṃ mardayetsamam //

From blowing as before, the essence becomes like a cochineal insect (indragopa).
Extraction of essence from vaikrānta (3):
One should triturate powder of vandhyā together with an equal part of vaikrānta in the shade,