Phlogopite In Marble

Mogok township pyin oo lwin district mandalay region myanmar.

Phlogopite in marble. 45 x 30 x 25 mm specimen. Thin sheets can be peeled off as layers and thin layers maintain an interesting metallic looking transparency. Cleavage steps can be seen on the top of the crystal. Yellow fluorescence in lw is sphalerite.

Phlogopite is an important and relatively common end member composition of biotite. Cr3 fe3 mn2 nd3. Phlogopite micas are found primarily in igneous rocks although it is also common in contact metamorphic aureoles of intrusive igneous rocks with magnesian country rocks and in marble formed from impure dolomite dolomite with some siliclastic sediment. High al vein phlogopite retained its al content from the contact metamorphic marble parent phlogopite and only underwent fe mg exchange with the metasomatic fluid.

Commercially it includes all decorative calcium rich rocks that can be polished as well as certain serpentines verd antiques. Petrographically marbles are massive rather than thin layered and consist of a. Grapi 133 53 gamma ray american petroleum institute units concentration of phlogopite per grapi unit 0 75 estimated radioactivity from phlogopite barely detectable. The medium to coarse grained candoglia marble mainly shows a pink colour with frequent dark green layers due to the presence of diopside and tremolite.

Fluorescent diopside blue uv sw and phlogopite pale yellow uv sw in marble matrix. All the vein phlogopites studied. Photos in sw lw uv sw lw and natural light. This specimen was collected from franklin new jersey and measures 8 6 x 7 1 x 6 4 centimeters in size.

Cabinet 10 18 cm sold. Pe phlogopite 2 30 barns electron u pe phlogopite x r electron 6 46 barns cc. Most common fl activator. Small cabinet 7 10 cm sold.

Marble granular limestone or dolomite i e rock composed of calcium magnesium carbonate that has been recrystallized under the influence of heat pressure and aqueous solutions. Backlit view also provided to show light transmission. Item localities for mineral. Diopside phlogopite in marble.

Gföhl krems land district lower austria austria. Diopside phlogopite in marble. Gföhl krems land district lower austria austria. N tio6 cluster other activators.

The varieties of candoglia marble pink white grey and veined are deeply affected by. Phlogopite is a common form of mica and it is usually distinguished by its brownish red color phlogopite like the other important mica s can come in very large crystal sheets. Barrel shaped phlogopite crystal and small phlogopite flakes in white marble.