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We found in it a group of fine crystals of black schorl.
2
I observed neither hornblende, black schorl, nor rutile titanite, in this granite.
3
Sometimes the red schorl occurs only in dendritic crystals of a bright red.
4
In another place, I found crystals of black schorl radiating from a common centre.
5
Roche hermitage in Cornwall occupies a spire of rocks of schorl that shoots 100 feet above the surrounding moor.
6
If the stuff does not answer the magnet, it is probably schorl (tourmaline), hornblende, or dark quartz.
7
The feldspar and the mica, for example, as well as the schorl, are found variously coloured in different granites, and coloured in various proportions.
8
Both specimens immediately succeed the Schorl rock at the Cataract, in large smooth-sided masses.
9
Schorl Rock.-Colourblueish grey, fine grained, extremely hard.