Albite

$NaAlSi_3O_8$

  Family tectosilicates
  Crystal system triclinic
  Color grey, white, sometimes blue reflections
  Streak color white
  Cleavage 2 cleavages (1 perfect, 1 good, to 94 o)
  Hardness 6
  Density 2,6 to 2,7

Explanations: → Here List of minerals: → Here