Spodumene

$LiAlSi_2O_6$

  Family inosilicates
  Crystal system monoclinic
  Color grey, white to green, pink, colorless, pastel colors, yellow, brown, purple
  Streak color white
  Cleavage 2 perfect cleavages at 87o
  Hardness 6,5 to 7
  Density 3,2

Explanations: → Here List of minerals: → Here