The worst part of gold is silver; tin is the worst part of silver; lead should be known as the worst part of tin; and dust is the worst part of lead.
सुवर्णस्य मलं रूप्यं रूप्यस्यापि मलं त्रपु। ज्ञेयं त्रपुमलं सीसं सीसस्यापि मलं मलम्॥