कुचन्दनं रूक्षमगुरुकालं रक्तं रक्तकालं वा ॥ कZ_०२.११.५० ॥
kucandanaṃ rūkṣamagurukālaṃ raktaṃ raktakālaṃ vā
“Kucandana”质地干燥;(其色)如沉香(aguru)般深暗,呈红色或红黑色。
Comparators provide a shared reference point for inspectors, improving consistency when exact color terms may be interpreted differently.