gray hematite

gray hematite

[¦grā ′hē·mə‚tīt]
(mineralogy)
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References in periodicals archive ?
Observations of Meridiani Planum from orbit suggest that the gray hematite was deposited by a watery source, perhaps an ancient and vast hot spring.
25, 2004, will explore Meridiani Planum, an area with deposits of an iron oxide called gray hematite.