MINERALIZATION: In the biotite-quartz schist the mineral associated are: plagoclase, calcite, iron oxides and, in the biotite, inclusions of zircon and allanite. Emerald occurs as disseminated crystals within the schist in the close vicinity of quartz veins. In the actinolite-biotite schist the minerals are: greenish black aggregate of actinolite relatively poor in quartz, actinolite, biotite, beryl and quartz, calcite, magnetite and hematite. In tourmaline-mica schist the minerals are: muscovite, quartz, topaz, tourmaline, fluoritee and beryl.