John W. Gruner
id:
john-w-gruner-253-8678169
title:
John W. Gruner
text:
John Walter Gruner was a German-born American mineralogist, crystallographer, and geologist. He scientifically described and named two minerals: minnesotaite (1944) and groutite (1945).
brand slug:
wiki
category slug:
encyclopedia
description:
American mineralogist (1890–1981)
original url:
https://en.wikipedia.org/wiki/John_W._Gruner
date created:
date modified:
2023-12-31T06:13:05Z
main entity:
{"identifier":"Q15713740","url":"https://www.wikidata.org/entity/Q15713740"}
image:
fields total:
13
integrity:
14