DescriptionPotassium feldspar 6.jpg English: A mineral is a naturally-occurring, solid, inorganic, crystalline substance having a fairly definite chemical...
Quartz 878 1334 195 272 2123 2123 Plagioclase feldspar 1359 1178 318 290 2123 2123 Orthoclase (Potassium feldspar) English operator: Flickr described at URL:...
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DescriptionPotassium feldspar (32499528651).jpg Potassium feldspar (upper specimen is 4.4 cm across; lower specimen is 4.6 cm across) A mineral is a naturally-occurring...
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 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...
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