Rocks containing limonite, a hydrous iron oxide, may be identified readily from Landsat Multispectral Scanner data.
Composition, a hydrous silicate of magnesia, much like that of serpentine.
A hydrous silicate of magnesia never in distinct crystals as such, but shown to be monoclinic under the microscope.
According to Dana (System of Mineralogy 689), it is cimolite, a hydrous silicate of aluminium.
The phosphates furnish us turquoise, a hydrous aluminum phosphate, with copper and iron.
Autunite, a hydrous phosphate of uranium and calcium, crystallizing in the rhombic system in yellow plates.
It is a pseudomorph after iolite, and consists mainly of hydrous aluminium silicate.
hydrous, Hydruntum, Otranto, has as good a claim as a city can well have to be looked on as the end of the world.
Iolite is a hydrous magnesium and aluminium silicate, with ferrous iron partially replacing magnesium.
Prehnite, pren′īt, n. a hydrous silicate of alumina and lime, usually of a pale-green colour.