Luster - Nonmetallic
Hardness - Greater than 5.5
Streak=White or Colorless
2 Directions of Cleavage - Nearly right angles
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Plagioclase |
White or colorless Streak |
2 Directions, nearly 90° |
Solid solution series between albite (Na) and anorthite (Ca). White, gray or black. Striations on some cleavage faces. H=6.0 |
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Your Mineral is Plagioclase feldspar!
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