शीतोदकीयं पद्माभं कालस्निग्धं वा ॥ कZ_०२.११.५३ ॥
śītodakīyaṃ padmābhaṃ kālasnigdhaṃ vā
‘Śītodakīya’ tem aparência de lótus, ou então é escuro e brilhante.
It signals a recognizable sheen/appearance associated with quality; such cues support rapid field verification without specialized instruments.