Figure F25. Photomicrograph showing zircon and other accessory minerals (epidote? apatite?) enclosed in the outer margin of a magmatic amphibole crystal (Sample 209-1270D-4R-1 [Piece 7, 33–37 cm]) (cross-polarized light: blue filter; field of view = 0.7 mm; image 1270D

Figure F25. Photomicrograph showing zircon and other accessory minerals (epidote? apatite?) enclosed in the outer margin of a magmatic amphibole crystal (Sample 209-1270D-4R-1 [Piece 7, 33–37 cm]) (cross-polarized light: blue filter; field of view = 0.7 mm; image 1270D_006).