Associations to the word «Pegmatite»
Wiktionary
PEGMATITE, noun. A coarsely crystalline igneous or plutonic rock composed primarily of feldspar and quartz, normally with muscovite and/or biotite mica. Often contains other minerals, which may be of economic importance. Pegmatite is chemically identical to granite, but has a much coarser crystal structure. Common colors are gray, white, and pink. Pegmatite is quarried for decorative stone and as a source of beryllium, columbium and tantalum when these are present. Gemstones of the quartz/silicate family may also be found in pegmatites.
Dictionary definition
PEGMATITE, noun. A form of igneous rock consisting of extremely coarse granite resulting from the crystallization of magma rich in rare elements.
Wise words
In words, as fashions, the same rule will hold; Alike
fantastic, if too new, or old: Be not the first by whom the
new are tried, Nor yet the last to lay the old aside.