Myrmekite is a vermicular, or wormy, intergrowth of quartz in plagioclase. The intergrowths are microscopic in scale, typically with maximum dimensions less than 1 millimeter. The …

Myrmekite is an intergrowth of branching rods of quartz set in a single crystal of plagioclase, neighboring rod of quartz have the same lattice orientation and extinguish together. Myrmekite …

granite, coarse- or medium-grained intrusive igneous rock that is rich in quartz and feldspar; it is the most common plutonic rock of the Earth’s crust, forming by the cooling of magma (silicate …

Apr 21, 2024 · Myrmekite describes the intergrowth of worm-like or vermicular quartz inside sodium-plagioclase (Na-plagioclase) in plutonic rocks. It usually occurs at the Na-plagioclase …

Nov 4, 2014 · Myrmekites are conspicuous microstructures of quartz–feldspar intergrowth. They are widespread in felsic magmatic and metamorphic rocks and have attracted the attention of …

Myrmekite (myr’-me-kite) is an intergrowth of plagioclase feldspar (generally oligoclase) and vermicular quartz, generally replacing potassium feldspar, formed during the later stages of …

The meaning of MYRMEKITE is an intergrowth of vermicular quartz and feldspar (as oligoclase) formed during the later stages in the consolidation of an igneous rock.

Jan 1, 1974 · Myrmekite, first detected by Michel-Lévy in 1875 and named by Sederholm in 1899, is an intergrowth between vermicular quartz and (sodic) plagioclase situated next to potash …

Myrmekite, the vermicular intergrowth of quartz in plagioclase, is considered by some geologists to form by replacement of K-feldspar by Ca- and Na-bearing fluids.

Dec 8, 2006 · myrmekite, irregular, wormy penetration by quartz in plagioclase feldspar; these wartlike, wormlike, or fingerlike bodies may develop during the late stages of crystallization of …