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Gairloch in North-West
Ross-Shire
Part
III.—Natural History of Gairloch
Chapter X.—Minerals of Gairloch, by Professor W. Ivison Macadam, F.C.S.,
F.I.C., M.M.S., &c, Edinburgh |
The following minerals were obtained in the localities mentioned, but
the list is very incomplete. Time has not permitted of analyses being made
of many samples, but such are now under examination, and will be available
for a further edition of this work:—
Agalmatolite—Black Rock, Tollie.
Albite feldspar—Loch Fionn. Agaric limestone—Coppachy. Agate—Tollie
Rock. Barytes—Black Rock, Tollie. Biotite—Loch Fionn.
Calcite—Black Rock, Tollie, &c. Chalcedony—Glen Logan, &c.
Chalcopyrite—Coppachy. Chlorite—Loch Gruinard, &c. Dolomite—Glen
Logan, Slioch, &c Epidote—Loch Fionn, Tollie Rock. Galenite—Glen
Logan limestone. Garnet—Loch Fionn. Heliotrope, or Bloodstone—Glen
Logan, &c. Hornblende—Loch Gruinard, Loch Fionn, &c. Limestone
(Massive)—Glen Logan, &c. Limonite (Bog iron ore)—South Erradale, &c.
&c. Marcasite—Glen Logan, Coppachy, &c. Muscovite—Loch Fionn, &c.
Oligoclase feldspar—Loch Fionn, &c &c. Pyrite—Glen Logan, Coppachy, &c.
Pyrolusite (Dendritic markings)—Loch Fionn. Quartz—Common. Quartzite
(common)—Glen Logan, &c. Rock crystal—Black Rock, Tollie (small
crystals). Serpentine—Black Rock, Tollie. Smoke quartz—Tollie Rock. |
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