shale ball

shale ball

[′shāl ‚bȯl]
(geology)
A meteorite partly or wholly converted to iron oxides by weathering. Also known as oxidite.
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References in periodicals archive ?
Table 4 shows that the oil contents of oil shale ball and particle are quite similar.
The strength of a 6% oil shale ball is the highest.
The oil shale ball with a bentonite content of 6% was found to be optimal.
A previous study [61] investigated the retorting of Haishiwan oil shale balls (29 mm x 38 mm) made of fine oil shale, bentonite and water.
Fisher assay results for coarse oil shale particles and oil shale balls (after [61]) Sample Oil, % Water, % Gas, % Coarse oil shale particles 12.