[lemma=phlogopite] ([□] □ | □) □
[lemma=phlogopite] ([□=□] □ | □) □
[lemma=phlogopite] ([□ | □] □ | □) □
Phlogopite is usually formed metamorphically , but may also develop from plutonic forces . Phlogopite is closely related to , and is often found with , biotite .