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Tourmaline var. Schorl Pitcapel Quarry, Aberdeen, Grampian Region, Scotland, UK. 12cm tall x 7cm x 6cm Another view of the above specimen showing quartz-filled strain cracks in the schorl. Ergo, the quartz crystallised after the toumaline (schorl) which is usually the case in old pegmatites. The schorl crystals in this pegmatite are also bent or curved slightly, which may be because the host granite rock was still moving (emplacement) when (or just after) the pegmatite was formed. (Author: Mike Wood)

Tourmaline var. Schorl
Pitcapel Quarry, Aberdeen, Grampian Region, Scotland, UK.
12cm tall x 7cm x 6cm
Another view of the above specimen showing quartz-filled strain cracks in the schorl. Ergo, the quartz crystallised after the toumaline (schorl) which is usually the case in old pegmatites. The schorl crystals in this pegmatite are also bent or curved slightly, which may be because the host granite rock was still moving (emplacement) when (or just after) the pegmatite was formed. (Author: Mike Wood)

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