felspathic

[ fel-spath-ik ]

/ fɛlˈspæθ ɪk /

Words nearby felspathic

In composition it is extremely different from basalt, this being a felspathic, as the other is an augitic, rock.
A Manual of Elementary Geology|Charles Lyell.
The cement of the sandstones is often felspathic; for this reason they yield useful porcelain clays in the Thuringerwald.
Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4|Various
The hills behind consisted in the higher parts of a felspathic conglomerate and clay-slate dipping to the eastward.
Three Expeditions into the Interior of Eastern Australia, Vol 2 (of 2)|Thomas Mitchell
When a fragmental rock is composed chiefly of rocks belonging to the acidic group, we say it is felspathic.
Geology|James Geikie

Pebbles of felspathic porphyry were found in the river's bed.
Journal of an Overland Expedition in Australia|Ludwig Leichhardt