Nonfoliated
Heat and litho-static pressure predominate. Results in a recrystallization of existing material. These factors are everywhere beneath the surface. this is why.
Marble is a completely non-foliated rock. lol
foliated
Some examples of foliated rocks include slate, phyllite, schist, and gneiss. Amphibolite can be either foliated or nonfoliated. Examples of nonfoliated rocks include anthracite coal, hornfels, serpentinite, soapstone, quartzite, marble, and metaconglomerate.
Nonfolated
Non-foliated metamorphic rocks generally do not have distinct layering.
A non-foliated contact metamorphic rock is called a hornfels. Hornfels is called so because of its exceptional toughness and texture both reminiscent of animal horns.
I too would like an answer to this question as it seems hornfels could be of varying grade dependant on the temperature. The facies of contact metamorphism progress in temperature at relatively low pressure from the Albite-Epidote Hornfels Facies to the Hornblende Hornfels Facies, to the Pyroxene Hornfels Facies. It seems that hornfels do have differant grades.
Marble is a completely non-foliated rock. lol
Diamond is non-foliated.
foliated
foliated
Well foliated rocks have layers and non foliated does not have layers.
foliated
Some examples of foliated rocks include slate, phyllite, schist, and gneiss. Amphibolite can be either foliated or nonfoliated. Examples of nonfoliated rocks include anthracite coal, hornfels, serpentinite, soapstone, quartzite, marble, and metaconglomerate.
It's non-foliated.
No.
Nonfolated