Difference between revisions of "Paper coal"
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m (Text replace - "== Authority ==" to "== Sources Checked for Data in Record ==") |
m (Text replace - "\[http:\/\/cameo\.mfa\.org\/materials\/fullrecord\.asp\?name=([^\s]+)\s(.*)\]" to "$2") |
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== Description == | == Description == | ||
− | A flaky variety of [ | + | A flaky variety of [[coal|coal]] or papyraceous [[lignite|lignite]] of the tertiary period which splits into thin layers. |
== Sources Checked for Data in Record == | == Sources Checked for Data in Record == |