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  1. Buckingham

    ... Buckingham Slate is classified as a mica slate with continuous Iayers (Micaceous Matrix) with marked aggregate ... dimension of .08 mm, most are smaller. Various species of mica and clay presumably form the majority of the specimen’s fabric, ...

    Ed FitzGerald - 2015-09-04

  2. Unfading Red

    ... dimension of .1 mm, most are smaller. Various species of mica presumably form the majority of the specimen’s fabric, but these are ... small to be individually perceived. Identifiable crystals of mica are mostly .15 mm and less in length and show some orientation preference. ...

    Raven Mueller - 2015-08-12

  3. Alcove Bluestone

    ... .08 mm. Matrix cement is predominantly clay minerals and mica , there is also a significant amount of very fine grained quartz and ... to .08 mm. Matrix cement is predominantly clay minerals and mica, there is also a significant amount of very fine grained quartz and ...

    Intern - 2015-09-05

  4. Imperial

    ... The most common non-carbonate accessory minerals are mica s ( phlogopite , muscovite ?) and acicular minerals ... likely magnetite , also occur individually and within mica aggregates. All accessory minerals constitute less than 5 percent of slide ...

    Ed FitzGerald - 2015-09-05

  5. Unfading Green

    ... dimension of .06 mm, most are smaller. Various species of mica presumably form the majority of the specimen’s fabric, but these are ... small to be individually perceived. Identifiable crystals of mica are mostly .1 mm and less in length. Visible mica crystals show moderate ...

    Raven Mueller - 2015-08-12

  6. Unfading Gray

    ... dimension of .12 mm, most are smaller. Various species of mica presumably form the majority of the specimen’s fabric, but these are ... small to be individually perceived. Identifiable crystals of mica are mostly .12 mm and less in length. Visible mica crystals show ...

    Raven Mueller - 2015-08-12

  7. Heathermoor

    ... is visible in a few feldspar grains. Various species of mica presumably form the majority of the specimen’s fabric, but these are ... small to be individually perceived. Identifiable crystals of mica are mostly .12 mm and less in length. Visible mica crystals show some ...

    Raven Mueller - 2015-08-12

  8. Unfading Mottled Purple and Green

    ... dimension of .08 mm, most are smaller. Various species of mica presumably form the majority of the specimen’s fabric, but these are ... small to be individually perceived. Identifiable crystals of mica are mostly .15 mm and less in length. Visible mica crystals show moderate ...

    Raven Mueller - 2015-08-12

  9. Semi-Weathering Gray

    ... dimension of .08 mm, most are smaller. Various species of mica presumably form the majority of the specimen’s fabric, but these are ... small to be individually perceived. Identifiable crystals of mica are.1 mm and less in length. Visible mica crystals show some orientation ...

    Raven Mueller - 2015-08-12

  10. Mottled Gray-Black

    ... is visible in a few feldspar grains. Various species of mica presumably form the majority of the specimen’s fabric, but these are ... small to be individually perceived. Identifiable crystals of mica are mostly .03 mm and less in length. Visible mica crystals show some ...

    Raven Mueller - 2015-08-12

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