Anandakanda 2.7.16

2.7.16

mandanādaṃ gatajyoti saptadhā kāṃsyam utsṛjet /
<bronze:: medic. properties>
ghṛtamekaṃ vinā cānyatsarvaṃ kāṃsyagataṃ nṛṇām //

dull in sound, and lusterless—one should reject bronze of these seven kinds.
<Medicinal Properties of Bronze>
Except for ghee alone, anything else placed in bronze