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IIYPEBSTIIENE. Augite is found in imbedded crystals in basalt, lava and dolerite at Boreslau, "Wolfsberg near Cernossin in Bohemia, tbe Rhongebirgc, Vogelsgebirge, the Kaiserstuhl in the Breisgau, Auvergne and Velay in France, Vesuvius, Teneriffe, Bourbon, Scotland ; in granular limestone at Pargas in Finland and several places in North America; in the meteoric stones which fell at Stannem in Moravia. It is sometimes found in the slags of iron furnaces, and has been obtained by fusing silica, lime and magnesia in proper proportions in a crucible, and permitting the mass to cool very slowly. By exposure to the atmosphere the variety called augite undergoes decomposi tion, and is converted into an earthy or steatitic substance. The transparent grey and green variety called diopside is found on the Mussa Alp in Piedmont and Schwarzenstein in the Tyrol with garnet and chlorite, in many parts of the Swiss and Italian Alps, at Beichenstein in Silesia, Tjotten, Modum in Norway, Malsjo and many other places in Sweden, Tammare in the parish of Hwittis, Orijerfvi in Finland, Achmatowsk in the Ural, Lichfield in Connecticut, Bolton in Massachusetts and several other parts of the United States. Malacolite or sahlite !s found in beds of iron and copper pyrites, magnetite, and hematite at Arendal in Norway, Fahlun, Norberg, Nya Kop- parberg, Langbanshytta, Persberg, Philipstad, and in veins with galena at Sahla in Sweden, near Schwarzenberg in Saxony, Monzoni in the Tyrol in granular limestone, at the foot of Ve suvius in matter ejected from the crater, w r ell crystallized in the v alley of Brosso in Piedmont, Fassathal in the Tyrol, Buon near Arendal, the Ago mine and Taberg near Philipstad in Sweden, the sources of the Sljudenka S.W. of the Baikal, Monroe and other places in New York. In the grass-green smaragdite from the Baclier, augite and amphibole occur in alternate layers, one °f the cleavages of the amphibole being parallel to the face a of the augite, and the intersection of the cleavages parallel to the odge ab. Ifi2. IIYPERSTIIENE.—Ilypersthene ; Phillips, Ilauy. Brismatoidischer Schiller-Spath ; Mohs. Ilypersthen; Ilaus- oiann, Haidinger. Oblique. Isomorphous with augite. 101, m 110. mb 43° 16' ab 90 0 ma 40 45 mm 86 30 o 3
