phlogopite in English

noun
1
a brown micaceous mineral that occurs chiefly in metamorphosed limestone and magnesium-rich igneous rocks.
Some of the characteristic minerals found in kimberlite are olivine, pyrope garnet, enstatite, diopside, ilmenite, phlogopite , perovskite, magnetite, and spinel.

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1. Postcataclastic formation of minerals (phlogopite, sericite, albite and quartz).

2. Biotite is now a group name for phlogopite, siderophyllite and eastonite

3. Biotite is now a group name for phlogopite, siderophyllite and eastonite.

4. Biotite and phlogopite are the darkest members of the mica mineral group

5. Minerals such as alkali feldspar, leucite, nepheline, sodalite, phlogopite mica, and apatite may be present in the groundmass.

6. Anhedral plagioclase is interstitial to augite and olivine, and subhedral, reddish-brown phlogopite is interstitial to plagioclase and pyroxene

7. Naturally occurring form of hydrous magnesium silicate containing varying proportions of such associated minerals as alpha-quartz, calcite, chlorite, dolomite, magnesite, and phlogopite

8. Naturally occurring form of hydrous magnesium silicate containing varying proportions of such associated minerals as alpha-quartz, calcite, chlorite, dolomite, magnesite, and phlogopite.

9. Natural Biotite Mica 4mm 6mm 8mm 10mm 12mm Round Beads Sparkling Mica in Brown Black Biotite Phlogopite 15.5" Strand Gemstone Beads Beadboat1

10. The typical black to brown color of Biotite is characteristic although it is difficult to distinguish brown Biotite from dark brown phlogopite.

11. Mindat - Biotite: discredited as valid mineral name 1999; Series names used in mica nomenclature; micas between, or close to, the annite-phlogopite and siderophyllite-eastonite joins.

12. Biotite is a name used for a large group of black mica minerals that are commonly found in igneous and metamorphic rocks. These include annite, phlogopite, siderophyllite, fluorophlogopite, fluorannite, eastonite, and many others

13. The massive kimberlite contains phenocrysts of olivine (Fo90–Fo93), chrome-pyrope (7–12 mol.% uvarovite), and phlogopite together with xenocrysts of pyrope-almandine (28–36 mol.% pyrope, 58–64 mol.% almandine) set in a groundmass of olivine (Fo89.5), magnetite, perovskite, and serpentine.

14. Characteristics supporting the association with carbonatite are: multiple carbonate generations with differing compositions, breccias healed by carbonate, comb-texture of carbonate, amygdales of dolomite, the stable isotope composition of carbonate; metasomatic alteration, fenitization and carbonatization of the associated rocks; the occurrence of apatite, fluorite, phlogopite, valleriite and baddeleyite.

15. Its general formula is K(Mg,Fe) 3 (AlSi 3 O 10)(OH) 2.Biotite is usually a solid solution of several minerals, mostly Fe-rich annite, KFe 3 (AlSi 3 O 10)(OH) 2, and Mg-rich phlogopite, KMg 3 (AlSi 3 O 10)(OH) 2; the exact composition of a sample is variable and has to be determined through a thorough analysis.

16. Biotite An important rock-forming silicate mineral; a member of the mica group K 2 (Mg,Fe) 6 [Si 3 AlO 10] 2 (OH,F) 4, in which the Mg/Fe ratio is less than 2:1; Biotite forms a series with phlogopite (of similar composition, but with Mg/Fe greater than 2:1) and may have Fe 3+, Ti 4+, and Al 3+ also present in the formula; sp