On the subordinate hills I observed sienite.
"Journal of an Overland Expedition in Australia" by Ludwig Leichhardt
The geological formation at the site is sienitic gneiss.
"Scientific American Supplement, No. 595, May 28, 1887" by Various
The summit rock was gneiss, succeeded by sienitic gneiss.
"The Life and Adventures of Kit Carson, the Nestor of the Rocky Mountains, from Facts Narrated by Himself" by De Witt C. Peters
More than half the surface was bare as black sienite could be.
"Left on Labrador" by Charles Asbury Stephens
If sienite, very hard, the quartz element predominating, as the feldspar does farther north.
"The Atlantic Monthly, Volume 15, No. 91, May, 1865" by Various
The great body of these rocks is a sienite, or sienitic granite, or greenstone.
"Scenes and Adventures in the Semi-Alpine Region of the Ozark Mountains of Missouri and Arkansas" by Henry Rowe Schoolcraft
This was a chimney-piece, wrought in Italy from pure white and sienite marble, for the use of Mr. Vaughan.
"Historic Shrines of America" by John T. (John Thomson) Faris
For grinding corn or rye, those made of sienite, or granite rock, are frequently used.
"Popular Technology, Vol. I (of 2)" by Edward Hazen