DICHROITE: DIOPTASE: DISTHENE: EMERALD: ENSTATITE: EPIDOTE: ESSONITE: EUCLASE: FLINT, THE STONE OF EARLY MAN: ITS USE IN ANCIENT EGYPT: ETHIOPIAN ARROWS: THE ELF DART: FAIRY STONE: CHIAS, THE FIRST TO PROVE THE FLASHING OF STRUCK FLINT: ITS USE IN THE PREVENTION OF NIGHTMARE: “HOLEY” STONES: BUTLER AND THE HOLLOW FLINT: THE MARA: THE GARNET: PECULIARITIES: DANA’S CLASSIFICATION: SUCCINITE, A HARMONY CHARM: GROSSULARITE, A HEALTH CHARM: PYROPE OR BOHEMIAN GARNET: LARGE SPECIMEN IN SAXON REGALIA: EMPEROR RUDOLPH’S SPECIMEN: A TALISMAN OF FRIENDSHIP: HOPE AND PSYCHIC DEVELOPMENT: SPESSARTITE, A PRAYER CHARM: ANDRADITE, A BANISHER OF UNWORTHY THOUGHTS: SPECIMENS FOUND ENGRAVED WITH ANGELS’ NAMES: OUVAROVITE: GARNETS AFFECT MAGNETIC NEEDLE: GREENSTONE: GROSSULARITE: HAEMATITE: SOTACUS’S CLASSIFICATION OF HAEMATITE VARIETIES AND THEIR ACCREDITED VIRTUES: DANA’S CLASSIFICATION: PLINY’S RECOMMENDATION: USE IN ANCIENT TIMES: MUMMY’S HEAD-REST: ANDREAS BALVANCENSIS’ IDEA: STENCH STONE: GALEN’S PRESCRIPTION: HIDDENITE: HORNSTONE: HYACINTH: VIRTUES OF THE HYACINTH: THE JACINTH VARIETY: THOMAS DE CANTEMPRE’S DESCRIPTION: OPINIONS OF LEONARDUS AND DE BOODT: FRANCIS BARRETT’S COMMENTS: OBSERVED CHANGES IN THE STONE: AVICENNA’S COMPARISON: THE HYACINTH IN THE GARDEN OF PEACE AND AMONGST THE ROSICRUCIAN JEWELS: HYDROPHANE: HYPERSTHENE: IOLITE. DICHROITE. (See IOLITE.) DIOPTASE. The name is derived from the Greek DIA, through, and OPTOMAI, to see. This pretty emerald-green copper silicate was named in 1801 by Hauy, who found on looking through it cleavage directions. As the crystals are usually so small Dioptase, which is of about the same degree of hardness as lapis lazuli, is seldom used in jewellery. According to ancient philosophy, dioptase would strengthen the sight of those who gazed upon it, and benefit if worn on the neck in throat troubles. Astrologically, dioptase is under the celestial Taurus. DISTHENE. (See KYANITE.) EMERALD. (See BERYL.) ENSTATITE. Named from the Greek ENSTATES, an opponent, because of its infusibility before the blow-pipe and its resisting power against acids. It occurs in various colours—grey, brown, yellow, colourless, and chiefly green; hence it has been erroneously called the Green Garnet. The Enstatite is a silicate of magnesium, and is scarcely as hard as the opal, yet it is found with the diamond, hardest of stones. It is esteemed as a talisman in examinations, arguments, debates and all contests in which the mind is employed. The Enstatite is under the celestial Gemini.