Can Granite Contain The Mineral Olivine

A granite can never be too light but it can be too dark.

Can granite contain the mineral olivine.

If you think the grains have a gemmy appearance olivine is the mineral name of a gemstone known as peridot the width of this view is about 10 millimeters. A fine grained igneous rock contains 11 plagioclase 72 pyroxene 15 olivine and 2 amphibole. But there are no such rock types that are composed of olivine plus quartz. Quartz can only form from magmas that are relative rich in silica while the olivine minerals only form from magmas that are relatively lean in silica so quartz and olivine are incompatible minerals.

The dark colored silicates contain iron and magnesium and include minerals such as olivine and pyroxene. The light colored silicates include quartz and feldspar which are the main constituents of granite and are used by the ceramic industry in both clays and glazes. Strictly speaking granite is an. Granite ˈ ɡ r æ n ɪ t is a common type of felsic intrusive igneous rock that is granular and phaneritic in texture.

Green olivine sand from papakolea beach hawaii. Olivine is typically with pyroxenes in basalt for example and quartz k feldspar with micas biotite and muscovite is a typical composition of granite. Basalt is mainly feldspar pyroxine and amphibole. Peridotite is mainly olivine peridot and.

The granite of pikes peak in colorado is an example of such a fayalite granite. Olivine does not naturally occur with the mineral quartz. Granite is mostly quartz feldspar and mica. Diorite can be a mixture of all of these minerals.

The white grains are coral fragments and the gray black grains are pieces of basalt. This rock would most likely be classified as answer choices.