phlogopite in a sentence

Examples

1. The phlogopite crystals have been used to determine the age of the dike and its crystallization temperature ( 900 �C ( 1, 650 �F ) ).
2. Phlogopite is the magnesium endmember of the biotite solid solution series, with the chemical formula KMg 3 AlSi 3 O 10 ( F, OH ) 2.
3. Secondary ( metamorphic ) minerals include chlorite, amphibole, sodic plagioclase, quartz, iron oxides and rarely phlogopite, baddeleyite, and pyrope or hydrogrossular garnet.
4. Minor minerals and mineral groups in peridotite include plagioclase, spinel ( commonly the mineral chromite ), garnet ( especially the mineral pyrope ), amphibole, and phlogopite.
5. Other minerals may include serpentine, clay minerals, carbonate minerals, phlogopite, ilmenite, perovskite, spinel, apatite, pyrite and, in some cases, diamonds.
6. Modal metasomatism may result in formation of amphibole and phlogopite, and the presence of these minerals in peridotite xenoliths has been considered strong evidence of metasomatic processes in the mantle.
7. The second is Phlogopite, which remains stable up to 900 �C and is used in applications in which a combination of high-heat stability and electrical properties is required.
8. It occurs in association with alstonite, barite, barytocalcite, calcite, daqingshanite, fluorite, huntite, monazite, phlogopite, pyrite, sphalerite, strontianite, and quartz.
9. The largest documented single crystal of mica ( phlogopite ) was found in Lacey Mine, Ontario, Canada; it measured 10 ?4.3 ?4.3 m and weighed about 330 tonnes.
10. In addition to diamonds, visitors may find semi-precious gems such as amethyst, agate, and jasper or approximately 40 other minerals such as garnet, phlogopite, quartz, baryte, and calcite.