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John W. Gruner

John W. Gruner
1890 - 1981
John W. Gruner  
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Age
90
at death
Zodiac
Cancer

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John W. Gruner is a member of the following lists: 1981 deaths, University of Minnesota alumni and 1890 births.

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Birthday 12th July, 1890
Died 1981
Zodiac Sign Cancer

John Walter Gruner (12 July 1890, Neurode, now Nowa Ruda – 1981) was a German-born American mineralogist, crystallographer, and geologist. He scientifically described and named two minerals: minnesotaite (1944) and groutite (1945).

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