1. The contact of the two metamorphic facies is located within Taganga. 2. It is an indicator mineral of the prehnite-pumpellyite metamorphic facies . 3. Comparison and classification of metamorphic facies is then determined for the sample. 4. Metamorphic facies are defined by the pressure-temperature fields in which particular minerals form.5. A set of mineral assemblage that formed under similar temperature and pressure is called metamorphic facies . 6. Results from the XRD are then compared to pre-established values assigned to metamorphic zones / metamorphic facies . 7. The Yule Marble is a metamorphic facies of the regionally distributed Leadville Limestone of dipping at an angle into the mountain. 8. Later the underlying principles of metamorphic zones were clarified by the Pentti Eskola, who introduced the concept of metamorphic facies . 9. Therefore, a metapsammite and a metapelite will have different mineralogical compositions even though they were in the same metamorphic facies . 10. It occurs metamorphic rocks of the greenschist to amphibolite metamorphic facies and in low-temperature hydrothermal veins in altered volcanic rocks.