chloritous

[* This magnetic sand no doubt owes its origin to chloritous slate, which, in these latitudes, forms the bed of the sea.] [* An-nicht Auflagerung, according to the precise language of the geologists of my country.]

Travels to the Equinoctial Regions of America 1851

This cement contains magnetic sand, * (* This magnetic sand no doubt owes its origin to chloritous slate, which, in these latitudes, forms the bed of the sea.) madrepores, and vestiges of bivalve sea shells.

Personal Narrative of Travels to the Equinoctial Regions of America, During the Year 1799-1804 — Volume 3 Alexander von Humboldt 1814