Similarities in lithology and heavy mineral suites between the Jacobsville Sandstone and the Bayfield group, a similar sandstone located in northern Wisconsin, suggest they may be correlated.
2.
Jacobsville Sandstone's heavy mineral suite is 84 % ilmenite, 4 5 % leucoxene, 4 % garnet, 3 % apatite, 3 % zircon, and 1 % tourmaline.
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