margarite definition

  • noun:
    • A rock development that resembles beads, within glassy igneous stones.
    • Archaic The pearl.
    • A calcium-rich member of the mica group of phyllosilicates, creating white to pinkish or yellowish-gray masses or thin laminae.
    • pearl
    • A pearl.
    • A mineral associated with the micas, but reduced in silica and producing brittle folia with pearly luster.
    • A pearl.
    • A mineral of micaceous structure, separable into thin laminæ that are instead brittle.
    • In lithology, an arrangement of the devitrification services and products (globulites) of a glassy material into forms resembling strings of beads: a phrase introduced by Vogelsang.
    • identical to margarita, 1.

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