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  1. Lueders, Light Antique R.B.

    ... .15 to .25 mm. Monocrystalline grains of calcite with sieve texture may, in some cases, represent echinoderm parts. There is no ...

    Raven Mueller - 2015-08-12

  2. Lueders, Light Antique

    ... around .7 mm. Monocrystalline grains of calcite with sieve texture may, in some cases, may represent echinoderm parts. Porosity in this ...

    Raven Mueller - 2015-07-22