Calc-schists

Calc-schists is an obsolete term for a metamorphosed argillaceous limestone containing calcite as a substantial component and with a schistose structure produced by parallelism of platy minerals. The term carbonate-silicate schist should be used in preference if the non-carbonate mineral content is more than 50 vol.% and the term schistose impure marble should be used otherwise.

Bibliography

• Bucher, K., & Grapes, R. (2011). Petrogenesis of metamorphic rocks. Springer Science & Business Media.
• Fossen, H. (2016). Structural geology. Cambridge University Press.
• Howie, R. A., Zussman, J., & Deer, W. (1992). An introduction to the rock-forming minerals (p. 696). Longman.
• Passchier, Cees W., Trouw, Rudolph A. J: Microtectonics (2005).
• Philpotts, A., & Ague, J. (2009). Principles of igneous and metamorphic petrology. Cambridge University Press.
• Shelley, D. (1993). Igneous and metamorphic rocks under the microscope: classification, textures, microstructures and mineral preferred-orientations.
• Vernon, R. H. & Clarke, G. L. (2008): Principles of Metamorphic Petrology. Cambridge University Press.
• Vernon, R. H. (2018). A practical guide to rock microstructure. Cambridge university press.

Photo
Quartz rich layers and clacite-muscovite layers. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Quartz rich layers and clacite-muscovite layers. The dark material is Graphite. Calc-schist from Vipiteno, Italian Alps. PPL image, 2x (Field of view = 7mm)	Quartz rich layers and clacite-muscovite layers. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)
Quartz rich layers and clacite-muscovite layers. The dark material is Graphite. Calc-schist from Vipiteno, Italian Alps. PPL image, 2x (Field of view = 7mm)	Quartz rich layers and clacite-muscovite layers. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Quartz rich layers and clacite-muscovite layers. The dark material is Graphite. Calc-schist from Vipiteno, Italian Alps. PPL image, 2x (Field of view = 7mm)
Quartz rich layers and clacite-muscovite layers. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Quartz rich layers and clacite-muscovite layers. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Graphite-muscovite layers and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. PPL image, 2x (Field of view = 7mm)
Graphite-muscovite layers and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Graphite-muscovite layers, quartz and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Graphite-muscovite layers, quartz and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)
Graphite-muscovite layers and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Graphite-muscovite layers, quartz and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Graphite-muscovite layers, quartz and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)
Graphite-muscovite layers and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. PPL image, 2x (Field of view = 7mm)	Graphite-muscovite layers and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Graphite-muscovite layers and deformed calcite crystals. Calc-schist from Vipiteno, Italian Alps. PPL image, 2x (Field of view = 7mm)
Muscovite rich layers in a Calc-schists. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Muscovite rich layers in a Calc-schists. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Muscovite rich layers in a Calc-schists. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)
Muscovite rich layers in a Calc-schists. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Muscovite rich layers in a Calc-schists. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)	Muscovite rich layers in a Calc-schists. Calc-schist from Vipiteno, Italian Alps. XPL image, 2x (Field of view = 7mm)