Phlogopite Mica is a frequent kind of mica, and it's typically distinguished by its own brownish-red colour. Phlogopite, such as another significant mica's, can come in rather big crystal sheets. Lean sheets may be peeled off as layers, and narrow layers maintain an intriguing metallic-looking transparency.
Biotite Mica, another frequent mica, is known from the IMA as a nutrient group of associated micas instead then as a single mineral type. Phlogopite is among those member minerals of this Biotite group, and is structurally and chemically similar to another Biotite minerals. It signifies the calcium rich end member of this Biotite group, whereas the other kinds of Biotite are full of iron.
Phlogopite is quite difficult to wash because if cleaned it's going to absorb water and begin to break apart. The ideal way to scrub Phlogopite and other Mica Powder is using a sterile electric toothbrush.
Muscovite, Biotite - Could be difficult to tell apart, though average Phlogopite colour is not the same colour then Muscovite Mica and Biotite, and those are also not typical in metamorphasized marbles where Phlogopite can be located.
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