A History of Indian Medical Literature v3.c49.s6.28

v3.c49.s6.28

Chapter seven (66 verses) describes the precious and semi-precious stones (ratna), their varieties, qualities and defects;⁷² the purification and killing of diamonds are dealt with, as well as the purification and druti of all the gems mentioned. The ratnas described in chapter seven are: māṇikya (ruby) and its two varieties, called padmarāga and nīlagandhi (3–7), mauktika (pearl; 8–10), vidruma (coral; 11–13), tārkṣya (emerald; 14–16),⁷³ puṣpaka or puṣparāga (topaz; 17–19), vajra (diamond) and its varieties (20–27), nīla (sapphire; 45cd–49),⁷⁴ gomeda (50–53), and vaidūrya (54–56).