pegmatitic การใช้

It consists of one to three meter thick pegmatitic peridotite and troctolite with disseminated sulfide minerals.
Similarly, crystal texture and form within pegmatitic rock may be taken to extreme size and perfection.
It is usually associated with lepidolite, beryl, quartz, albite, amblygonite, and spodumene of pegmatitic origin.
Therefore, the only situation where an alexandrite can grow is when Be-rich pegmatitic fluids react with Cr-rich country rock.
Gabbro may be extremely coarse grained to pegmatitic, and some pyroxene-plagioclase cumulates are essentially coarse grained gabbro, some may exhibit acicular crystal habits.