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