Want this question answered?
Garnet schist-- as well as mica schist--can be found anywhere where clay rock with some calcite content-- such as siltstone or a mudstone, for example-- can be compressed (via metamorphism) and consequently sqeezed into rock-like layers.
A Mica Garnet schist is a metamorphic rock formed from a shale or a granitic mother rock when this is squashed and heated at death in the crust.
yes it is many people think it is an igneous rock because it is red
Regardless of the color of the garnet specimen, it would leave a white streak.
red - pyrope garnet, spessartine, almandine yellow - mali, andradite green - tsavorite, grossular garnet, uvarovite, demantoid orange - mandarin garnet, spessartite(spessartine), hessonite brown- spessarite, hessonite, andradite blue, purple - color-change garnet
Schist has A LOT of mica in it
Biotite, muscovite, chlorite, talc, garnet, and kyanite are common in schist.
schist
Garnet schist-- as well as mica schist--can be found anywhere where clay rock with some calcite content-- such as siltstone or a mudstone, for example-- can be compressed (via metamorphism) and consequently sqeezed into rock-like layers.
A Mica Garnet schist is a metamorphic rock formed from a shale or a granitic mother rock when this is squashed and heated at death in the crust.
yes it is many people think it is an igneous rock because it is red
A Mica Garnet schist is a metamorphic rock formed from a shale or a granitic mother rock when this is squashed and heated at death in the crust.
Sediments which are derived from some schist rock formations might contain garnet.
Garnet leaves no color in a streak test .
Sheen, usually attributable to mica crystals. --------------------------------------------- There is a bit more to it than this (although the above is true). The individual mineral grains in a schist are drawn out into flaky scales by heat and pressure and can be seen by the naked eye. Schist is therefore characteristically foliated, meaning the individual mineral grains split off easily into flakes or slabs. Indeed, the word schist is derived from the Greek word meaning "to split", which is a reference to the ease with which schists can be split along the plane in which the platy minerals lie.
The color of schist depends on its mineral composition. It can be gray, yellow, light or dark green, brown, or even black.
Regardless of the color of the garnet specimen, it would leave a white streak.