Belt strata are composed primarily of fine-grained quartz and original clay ( now metamorphosed to fine-grained white mica, or sericite ).
12.
Dark green subearial pyroclastics composed of chlorite and sericite are uncommon and have sustained preferential compression in response to shear throughout the Link Lake Deformation Zone.
13.
Deposits may be vertically zoned from deeper albite-magnetite assemblages trending toward silica-K-feldspar-sericite in the upper portions of the deposits.
14.
Between, the North Col Formation consists chiefly of biotite-quartz phyllite and chlorite-biotite phyllite intercalated with minor amounts of biotite-sericite-quartz schist.
15.
Structurally, brammallite is quite similar to muscovite or sericite with slightly more silicon, magnesium, iron, and water and slightly less tetrahedral aluminium and interlayer potassium.
16.
The Awband Formation is made up of schists ( quartz-sericite, quartzchlorite-sericite, quartz-sericitechlorite and carbonaceoussericite ) that are metamorphosed acid and basic tuffites and argillaceous rocks.
17.
The Awband Formation is made up of schists ( quartz-sericite, quartzchlorite-sericite, quartz-sericitechlorite and carbonaceoussericite ) that are metamorphosed acid and basic tuffites and argillaceous rocks.
18.
Saussurite is not however recognized as a true mineral because it is a microscopic mixture of several other minerals, zoisite, epidote, sericite, albite or other sodium rich feldspar along with possibly scapolite.
19.
The minute crystals of graphite, sericite, or chlorite, or the translucent fine-grained white mica, impart a silky, sometimes golden sheen to the surfaces of cleavage, called " phyllitic luster ".
20.
The original sedimentary succession transformed into migmatites at its base, followed by gneisses, micaschists and finally sericite schists and chlorite schists at the top, the schists at the top only being metamorphosed under greenschist facies conditions.
