Garnet Thin Section Properties

Refractive index varies depending on type of garnet.

Garnet thin section properties. Ultramafic igneous rocks almandine. Alex strekeisen i vetrini della mia fantasia. They all have a vitreous luster a obvious to translucent diaphaneity a brittle tenacity and a loss of cleavage.

The most commonly encountered minerals in the garnet group include almandine pyrope spessartine andradite grossular and uvarovite. Garnet ppl properties relief. Garnets x 3 y 2 sio 4 3 named from granatum a pomegranate for its resemblance to seeds of this fruit garnets are nesosilicates having the general formula x 3 y 2 sio 4 3 the x site is usually occupied by divalent cations ca 2 mg 2 fe 2 and the y site by trivalent cations al 3 fe 3 cr 3 in an octahedral tetrahedral framework.

The large black grain is the garnet the red elongate. Garnet physical and chemical properties. Typical garnet in mica schist and gneiss spessartine.

Color in thin section is a pale version of the hand sample color and is often more lightly colored than spinel. Colour pale pink colourless. High relief in thin section.

Garnet physical and chemical properties the most normally encountered minerals in the garnet institution consist of almandine pyrope spessartine andradite grossular and uvarovite.