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DescriptionPotassium feldspar 13.jpg English: A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical...
DescriptionPotassium feldspar 8.jpg English: A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical...
DescriptionPotassium feldspar 6.jpg English: A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical...
DescriptionPotassium feldspar 10.jpg English: A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical...
DescriptionPotassium feldspar 4.jpg English: A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical...
DescriptionPotassium feldspar 11.jpg English: A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical...
DescriptionPotassium feldspar 3.jpg English: A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical...
