नागपर्वतकं रूक्षं शैवलवर्णं वा ॥ कZ_०२.११.५४ ॥
nāgaparvatakaṃ rūkṣaṃ śaivalavarṇaṃ vā
“Nāgaparvataka”干燥/粗糙,或呈海藻绿。
Dryness/roughness can indicate age, storage conditions, or a different grade; recording it supports rotation decisions and valuation adjustments.