Polysynthetic Twins

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This crystal of Aragonite shows a method of twinning where the twinning plane may remain parallel to itself, so that the alternate individuals are in parallel position. This is called Polysynthetic Twinning.




George Huntington Williams, Ph.D. Elements of Crystallography for Students of Chemistry, Physics, and Mineralogy (New York, NY: Henry Holt and Company, 1892)


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1653×2844, 477.3 KiB

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