Vimalaka (pure), sasyaka (plant-like), Anjanamúlaka (deep-dark), Pittaka (like the bile of a cow) Sulabhaka (easily procurable), Lohitaka (red), Amritámsuka (of white rays), Jyótírasaka (glowing), Maileyaka, Ahichchhatraka , (procured in the country of Ahichchhatra), Kúrpa, Pútikúrpa, and Sugandhikúrpa, Kshírapaka, Suktichúrnaka (like the powder of an oystershell), Silápraválaka (like coral), Pulaka, Súkrapulaka are varieties of inferior gems.