102 DOLOMITE FAMILY. Constituent Parts. 02.00 35.90 1.00 0.44 100.00 Thomson, Annals of Phil. vol. iv. p. 418. Geographic Situation, t — " . r-iO’jo / It occurs about three miles from Tinmouth Castle. • y Observations, This curious mineral was discovered by Mr Nicol, Lecturer on Natural Philosophy. To tlmt gentleman I am indebted for the following particulars in regard to it. lie finds, that its flexibility is considerably inlluenced by the quantity of water contained in it. When saturated with water, it is remarkably flexible ; as the evaporation goes on, it becomes more and more rigid, until the water be reduced to a certain limit, when . the flexibility becomes scarcely distinguishable. Prom this point, however, the flexibility gradually increases, as the moisture diminishes; and as soon as the water is completely exhaled, it be comes nearly as flexible as it was when saturated with that fluid. Carbonate of Lime, Carbonate of Magnesia, Insoluble matter, Loss, 2. Micmite.