Tremolite In Marble Thin Section
5camg co 3 2 dolomite 8sio 2 h 2 o ca 2 mg 5 si 8 o 22 oh 2 tremolite 3caco 3 calcite 7co 2.
Tremolite in marble thin section. Pereval marble quarry slyudyanka sludyanka lake baikal area irkutskaya oblast prebaikalia pribaikal e eastern siberian region russia. Tremolite and actinolite both form thin parallel flexible fibers up to 10 in 25 cm in length which are used commercially as asbestos. It occurs from the conversion of dolomite silica and water into tremolite calcite and carbon dioxide by way of the following reaction. This process generally increases the average grain size which gives marble its sparkling appearance.
Tremolite ppl tremolite xpl. Tremolite is a relatively common mineral in some metamorphic rocks. Home atlas of minerals in thin section. Tremolite thin section photomicrographs are taken in plane polarized light and cross polarized light and can easily be recognized under the microscope.
Tremolite is known as nephrite jade when it is massive and fine grained. Tremolite in hand sample. The word marble derives from the greek màrmaron crystalline rock shining stone. The mineral is abundant and widespread.
Tremolite in talc tremolite schist crossed polars. Tremolite in talc tremolite schist plane polars. Acicular tremolite in quartzite. Tremolite marble the term marble in geology is restricted to metamorphic rocks in which the carbonate minerals have recrystallized.
It is the product of both thermal and regional metamorphism and is an indicator of metamorphic.