>  Term: groutite
groutite

An orthorhombic mineral, MnO(OH) ; trimorphous with manganite and feitknechtite; in brilliant submetallic to adamantine wedge-shaped crystals in the banded iron formations of the Cuyuna Range, MN.

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작성자

  • ed.young
  • (Milwaukee, United States)

  •  (V.I.P) 21084 포인트
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