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 the End, we will remember not the words of our enemies,
but the silence of our friends.