felstone

n.

霏细岩；

felstone
On the Occurrence of Felstone Implements of the Le Moustier Type in Pontnewydd Cave, Near Cefn, St. Asaph.
Four ``Felstone'' Intrusions in Central Berwickshire
A Felstone Dyke on Llechog
Note on granite, porphyry or felstone
“Feldspar” and “feldstone” versus “felspar” and “felstone”
On some Nodular Felstones of the Lleyn
Eurites, or Basic Felstones of Silurian Age
III.—Notes on the Felsite of Bittadon, N. Devon
“Feldspar” and “feldstone” versus “felspar” and “felstone”