Definitions

from The Century Dictionary and Cyclopedia

  • n. A yellowish-green variety from Ceylon is known as Ceylonese peridot or Ceylonese chrysolite.
  • n. A mineral, crystallizing in the rhombohedral system, often in the form of a three-, six-, or nine-sided prism terminated by three faces of an obtuse rhombohedron.

Etymologies

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Examples

  • It has long been known, that a siliceous stone called the tourmalin, when its surfaces are polished, if it be laid down before the fire, will become electrified with vitreous, or what is called positive electricity on its upper surface; and resinous, or what is called negative electricity on its under surface; which I suppose lay in contact with somewhat which supported it near the fire.

    The Temple of Nature; or, the Origin of Society A Poem, with Philosophical Notes

  • a siliceous stone called the tourmalin, when its surfaces are polished, if it be laid down before the fire, will become electrified with vitreous, or what is called positive electricity on its upper surface; and resinous, or what is called negative electricity on its under surface; which I suppose lay in contact with somewhat which supported it near the fire.

    Note XII

  • Carlos del Rio Negro, and the Peak of Duida, the granite is traversed by numerous veins of different ages, abounding with rock-crystal, black tourmalin and pyrites.

    Travels to the Equinoctial Regions of America

  • Peak of Duida, the granite is traversed by numerous veins of different ages, abounding with rock-crystal, black tourmalin and pyrites.

    Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3

  • By heat and by decomposition; the tourmalin; cats; galvanic pile; evaporation of water.

    The Temple of Nature; or, the Origin of Society A Poem, with Philosophical Notes

  • The tourmalin has lately been brought much into notice by its remarkable property of becorfiing

    The Economy of Nature Explained and Illustrated: On the Principles of Modern Philosophy. By G ...

  • Sometimes the quartz presents a large surface covered with a crust of a fine black substance; at first sight, this matter would be taken for manganese, but by attentive observation, it ap - pears to be nothing more than the substance of tourmalin itself, in a state of confused crystallization.

    Transactions of the American Philosophical Society

  • In this experiment I suppose the tourmalin to be naturally combined with resinous electric ether like glass; which on one side next towards the fire by the increase of its attractive power, owing to the heat having loosened its combination with the earth of the stone, more strongly attracts vitreous electric ether from the atmosphere; which now stands on its surface: and then as the lower surface of the stone lies in contact with the hearth, the less quantity of vitreous ether is there repelled by the greater quantity of it on the upper surface; while the resinous ether is attracted by it: and the stone is thus charged like a coated jar with vitreous electric ether condensed on one side of it, and resinous on the other.

    The Temple of Nature; or, the Origin of Society A Poem, with Philosophical Notes

  • "The present craze of Society women is for Chinese pink jade and tourmalin.

    The Hand in the Dark

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