Anandakanda 2.8.150

2.8.150

svarbhānavaḥ ṣaḍāhvo'yaṃ piṅgasphaṭika ityapi /
gomūtrābhaṃ yanmṛdu snigdhamuṣṇaṃ śuddhacchāyaṃ gauravaṃ yacca dhatte /
hemāraktaṃ śrīmatāṃ yogyametat gomedākhyaṃ ratnam ākhyāti santaḥ //

and the gem of Svarbhānu—this [gem] has six names, also yellow quartz. / That which resembles cow's urine, is soft, unctuous, hot, has a pure hue, possesses heaviness, / and is golden-red, suitable for the fortunate—the wise proclaim this gem as gomedaka.