From Krantz Catalog
Bar above 1 means -1

Mineral Name:   Albite (also Kumdykolite)

Color                               White, gray, blueish, greenish, reddish
Crystal system                  triclinic
Cleavage                          perfect on {001}, very good on {010}, imperfect on {110}
Fracture                           uneven to conchoidal
Mohs scale hardness        6 - 6.5
Luster                              Vitreous
Streak                             White
Specific gravity                2.61 - 2.63