Image:Coal.jpg

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Wikimedia Commons ê ang-á-phiau Chit ê tóng-àn tùi Wikipedia Commons lâi--ê; ū khó-lêng hām pa̍t-ê Wikipedia sū-kang kong-ke iōng. Chhiáⁿ chham-khó iáⁿ-siōng soat-bêng-ia̍h ê pán-koân seng-bêng.


This image is from:[1]

Public domain This image is a work of the "Minerals in Your World" project, a cooperative effort between the United States Geological Survey and the Mineral Information Institute. The images were featured in the "Minerals and Materials Photo Gallery" on the website of the U.S House Subcommittee on Energy and Natural Resources. As a work of the U.S. federal government, the image is in the public domain.

Í-hā ê ia̍h liân kàu chit ê iáⁿ-siōng: