Melanosome (geology)

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For the biological organelle involved in skin pigmentation, see melanosome.

In geology, a melanosome is a dark,[1] mafic mineral band formed in migmatite which is melting into a eutaxitic texture ; often, this leads to the formation of granite. The melanosomes form bands with leucosomes, and in that context may be described as schlieren or migmatitic.

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  1. ^ Recommendations by the IUGS Subcommission on the Systematics of Metamorphic Rocks, Part 6. Migmatites and related rocks, p2. [1]

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