1
At fifteen miles camped under the highest point, which is composed of quartz rock.
2
The soil, of volcanic origin, is composed of quartz, mixed with a bluish stone.
3
A reddish granitic stone, composed of quartz, felspar, and tourmaline.
4
The hills, however, are all composed of quartz, gneiss, talcose slate, or mica slate.
5
Short range here is composed of quartz, ironstone, and red granite, with a little limestone.
6
The stake was composed of quartz, alkali, feldspar, mica, and traces of tourmaline and hornblende.
7
The rock was composed of quartz pebbles of different colours, imbedded in a red clayey paste.
8
Granite is composed of quartz, feldspar, and mica.
9
Composed of Quartz, Feldspar, and Mica.
10
Many of them were composed of quartzite and pegmatite [Graphic granite, composed of quartz and laminated felspar.-ED
11
The rocks were composed of quartz, probably a species of granite, but much unlike that which formed Furneaux's Islands.
12
Most of the world's sand grains are composed of quartz, which is a form of silicon dioxide, also known as silica.
13
Tin is also found, as at Eurieowie, in dykes, composed of quartz crystals and large scales of white mica, traversing the older slates.
14
The Burdekin here comes from the westward, and made a large bend round several mountains, composed of quartz porphyry, with a sub-crystalline felspathic paste.
15
I found a group of small hills, composed of quartz rock, the strata of which were highly inclined, and the strike extended north-west and south-east.
16
The vein was composed of quartz, bearing sulphides, with horn silver plainly visible, giving an average assay of from $350 to $500.