a usually milky white variety of plagioclase, NaAlSiO, found in various plutonic rocks, esp. granite and syenite, often with twin crystals
Origin of albitefrom Classical Latin albus, white + -ite
A colorless to white variety of feldspar that is classified both as plagioclase feldspar and alkali feldspar, contains a high proportion of sodium to calcium and potassium and is a common constituent of igneous, metamorphic, and sedimentary rocks.
Origin of albiteLatin albus white ; see albho- in Indo-European roots. -ite 1
- al·bit′ic al·bit′i·cal
From the Latin albus (white), the common color of the mineral.