Split and merge into it. Answer by Scitrs. Confidence votes 412. The word Hindu came from the word Sindhu which meant those who lived on the other side of the Indus river. The Persian pronounced the Sindhu as Hindus, and all people living on the other side of the river Sindhu were called by them as Hindus.indu means one who believes in the Hindu Dharma and Philosophy as enunciated in Vedas, Upnishadas, Gita and other Hindu scriptures profess â¦ ing beliefs, principles, precepts, idealogy and practices of Hinduism.
Pegmatites may be composed of a variety of minerals. Terms such as granite pegmatite, gabbro pegmatite, syenite pegmatite, or names with any other plutonic rock type as prefix are used. Compositions in the range from granodiorite to granite are common.ome pegmatite bodies are small irregular patches less than 1 cm. (0.4 in) across in larger masses of plutonic or metamorphic rocks. Others may be thousands of meters in length and hundreds of meters thick. Some appear as dikes, veins, or sills. Many have irregular outlines.
The two best-known igneous rock types are basalt and granite, which have distinctly different compositions and textures. Basalt is the dark, fine-grained stuff of many lava flows and magma intrusions. Its dark minerals are rich in magnesium (Mg) and iron (Fe), hence basalt is called a mafic rock.So basalt is mafic and either extrusive or intrusive.Granite is the light, coarse-grained rock formed at depth and exposed after deep erosion.he main thing about igneous rocks is that they were once hot enough to melt. The following traits are all related to that. 1  Because their mineral grains grew together tightly as the melt cooled, they are relatively strong rocks. 2  They're made of primary minerals that are mostly black, white or gray.