Missouri, Audrain County, Mexico
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This is the largest "surface boulder" of Diaspore found in the Missouri Diaspore Fields lying south of the Missouri River. - It was taken from a diaspora pit near Aud, Osage County, Missouri, in 1926. - Diaspore is a high alumina clay occurring in this form with a fusion point above 3300°F. - chemically it consists mainly of alumina and water. Diaspore is a raw material or clay from which the A. P. Green high alumina super refractories are made.
(Environment • Industry & Commerce) Includes location, directions, 2 photos, GPS coordinates, map.
![](http://www.hmdb.org/Photos2/261/Photo261466.jpg)
This is the largest "surface boulder" of Diaspore found in the Missouri Diaspore Fields lying south of the Missouri River. - It was taken from a diaspora pit near Aud, Osage County, Missouri, in 1926. - Diaspore is a high alumina clay occurring in this form with a fusion point above 3300°F. - chemically it consists mainly of alumina and water. Diaspore is a raw material or clay from which the A. P. Green high alumina super refractories are made.
(Environment • Industry & Commerce) Includes location, directions, 2 photos, GPS coordinates, map.