Mica In Thin Section

Photomicrographs of a thin section containing carbonate vein in mica rich rock.

Mica in thin section. Over time this collection should become more orderly and comprehensive but don t hold your breath. To link to this object paste this link in email im or document to embed this object paste this html in website. The mineral phlogopite phlogopite is a common form of mica and it is usually distinguished by its brownish red color.

Muscovite plane polars muscovite crossed polars fine grained muscovite with chlorite green plane polars fine grained muscovite with chlorite crossed polars muscovite with biotite and garnet in maidens gneiss plane polars muscovite with biotite and garnet in maidens gneiss crossed polars. Home rocks and minerals muscovite thin section reference url share. Add tags comment rate.

Muscovite thin section view description. Sericite thin section photomicrographs are taken in plane polarized light and cross polarized light and can easily be recognized under the microscope. These sheets are chemically inert dielectric elastic flexible hydrophilic insulating lightweight platy reflective refractive resilient and range in opacity from transparent to opaque.

Cross polarized light field width is 6 mm. This is a somewhat haphazard collection of metamorphic textures and rocks seen in thin section with some discussion of the processes thought to have made them. Damage produced during thin section grinding causes speckles of light in the biotite where the crystal lattice has been deformed.

Identification tables for common minerals in thin section these tables provide a concise summary of the properties of a range of common minerals. Muscovite in thin section thin section gigapans. This is called incomplete extinction or sometimes birds eye maple extinction.

The crystalline structure of mica forms layers that can be split or delaminated into thin sheets usually causing foliation in rocks. Included grains of. Small 250x250 max medium 500x500 max large.