One of the Sanskrit appellations of the hyacinth (zircon) is _râhuratna_,—that is, the jewel dedicated to the mysterious “dragon,” that was supposed to be the cause of the periodic eclipses of the Sun and Moon.[450] As the stone was sacred to this malevolent influence, we need not be surprised that it was believed to avert misfortune, for nothing was so effective against the lesser spirits of evil as an evil genius of great power. According to the Hindu mystics it was very lucky to have a turquoise at hand at the time of the new moon, for whoever, after first looking at the moon on the _pratipada_ (the first day after new-moon), should cast his eyes upon a turquoise, was destined to enjoy immeasurable wealth.[451] ZODIACAL GEMS Aquarius. January 21 to February 21. The Garnet. If you would cherish friendship true, In Aquarius well you’ll do To wear this gem of warmest hue— The garnet. Pisces. February 21 to March 21. The Amethyst. From passion and from care kept free Shall Pisces’ children ever be Who wear so all the world may see The amethyst. Aries. March 21 to April 20. The Bloodstone. Who on this world of ours his eyes In Aries opens shall be wise If always on his hand there lies A bloodstone. Taurus. April 20 to May 21. The Sapphire. If on your hand this stone you bind, You in Taurus born will find ’Twill cure diseases of the mind, The sapphire. Gemini. May 21 to June 21. The Agate. Gemini’s children health and wealth command, And all the ills of age withstand, Who wear their rings on either hand Of agate. Cancer. June 21 to July 22. The Emerald. If born in Cancer’s sign, they say, Your life will joyful be alway, If you take with you on your way An emerald. Leo. July 22 to August 22. The Onyx. When youth to manhood shall have grown, Under Leo lorn and lone ’Twill have lived but for this stone, The onyx. Virgo. August 22 to September 22. The Carnelian. Success will bless whate’er you do, Through Virgo’s sign, if only you Place on your hand her own gem true, Carnelian.