a. [f. as prec.: see -GRAPHIC.]

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  1.  Of or pertaining to crystallography.

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1804.  Edin. Rev., III. 497. The important consequences of Haüy’s crystallographic discoveries.

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1868.  Dana, Min., Introd. 26. The crystallographic symbols used in this work are essentially those of Naumann.

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  2.  Of or belonging to crystals (as scientifically studied); = CRYSTALLIC.

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1857.  Whewell, Hist. Induct. Sc., II. 329. The crystallographic axis.

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1869.  Phillips, Vesuvius, x. 290. The three minerals … have nearly the same crystallographic angles.

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  So Crystallographical a., dealing with crystallography; = prec. Crystallographically adv., in relation to crystallography. † Crystallographist = CRYSTALLOGRAPHER.

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1801.  Chenevix, in Phil. Trans., XCI. 195. The crystallographical arrangement, adopted in the preceding Paper.

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1806.  Edin. Rev., VIII. 78. Excellent crystallographical papers.

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1831.  Brewster, Optics, xxix. § 147. 247. I have found this both crystallographically … and optically.

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1850.  Daubeny, Atom. Th., xii. (ed. 2), 417. Two minerals chemically the same, although crystallographically different.

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1796.  Kirwan, Min., I. 446. The late excellent crystallographist, Mr. Romé de Lisle.

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