Crystallographic and Geological Factors in the Growth of Garnets from Central Perthshire

Abstract

IN the process of mineralogical and petrological studies of the metamorphic rocks in the Central Highlands of Scotland, it has been found that in certain minerals, particularly garnets, there is evidence of interplay of crystallographic and geological factors. Such is seen in the sample which has been collected from central Perthshire (National Grid No. NN 913602). It consists of compact impure graphitic limestone studded with numerous dodecohedral garnets, up to 5 mm. in diameter, but normally of the order of 2 mm. In addition to calcite and garnet, the rock contains an appreciable amount of quartz, muscovite, chlorite and ores. Graphitic dust is concentrated in calcite, muscovite and chlorite.

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References

  1. 1

    Karpinsky, Mel. Phys. Chim. St. Petersbourg, 12, 639 (1887).

  2. 2

    Harker, “Metamorphism”, 3rd edit., 41 (1950).

  3. 3

    Seagar, “Min. Mag.”, 30, 1 (1953).

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RAST, N., STURT, B. Crystallographic and Geological Factors in the Growth of Garnets from Central Perthshire. Nature 179, 215 (1957). https://doi.org/10.1038/179215a0

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