It is not a settled point what stone is meant. Lassen says that the Sanskrit word _kalyâṇa_ means _gold_, and would therefore identify it with the chrysolith or gold-stone. If this view be correct, the reading of the MS. need not be altered into καλλαῖνὸς, as Salmasius, whom the editors of the _Periplûs_ generally follow, enjoins. In support of the alteration Salmasius adduces Pliny, xxxvii. 56:—“Callais sapphirum imitatur, candidior et litoroso mari similis. Callainas vocant e turbido Callaino”, and other passages. Schwanbeck, however, maintaining the correctness of the MS. reading, says that the Sanskrit word _kalyâṇa_ generally signifies _money_, but in a more general sense _anything beautiful_, and might therefore have been applied to this gem. _Kalyâṇa_, he adds, would appear in Greek as καλλιανὸς or καλλεανὸς rather than καλλαῖνὸς. In like manner _kalyâṇî_ of the Indians appears in our author not as καλλάïνα, but, as it ought to be, καλλίενα. 4. Λύγδος—Alabaster. Exported from Mouza (24). Salmasius says that an imitation of this alabaster was formed of Parian marble, but that the best and original _lygdus_ was brought from Arabia, that is, Mouza, as noted in the _Periplûs_. Cf. Pliny (xxxvi. 8):—“Lygdinos in Tauro repertos ... antea ex Arabia tantum advehi solitos enndoris eximii.” 5. Ὀνυχινὴ λίθια—Onyx (_akika_—agate). Sent in vast quantities (πλειστη) from Ozênê and Paithana to Barugaza (48, 51), and thence exported to Egypt (49). Regarding the onyx mines of Gujarât _vide_ Ritter, vol. VI. p. 603. 6. Μουρρίνη, sup. λιθια—Fluor-spath. Sent from Ozênê to Barugaza, and exported to Egypt (49). Porcelain made at Diospolis (μουρῥίνη λιθία ἡ γενομένη ἐν Διοσπόλει) exported from Egypt to Adouli (6).