HANDBOOK FOR THE DEPARTMENT OF GEOLOGY. 555 



28651. Gold Canon, of Red Jacket Mine, Nevada, 24066. Between Los Angeles 

 nud Cocamonga, Los Angeles County, California, 33763; Peter-Head, Scotland, 

 30177; Rorostyesor, South Russia (with garnets), 38816.; Rhone, France, 38262; 

 La Bresse Vosges, France, 38203 ; Roken, Christiania, Norway, 36178; Ockeithal, 

 in the Harz Mountains, 36172; Brocken, in the Harz Mountains, 36171; Kirneck- 

 thal Barr, in the Vosges Mountains, Germany, 36170 ; Vosges Mountains, Ger- 

 many,36179; near Chemnitz, Saxony, 3854 ; near Bantzeu, Saxony, 3852; Dresden, 

 Saxony, 3850; Alteuberg, Saxony, 3851 ; near Freiberg, Saxony, 3855 and 3853; 

 near Pirna, Saxony, 3856; Kleesberg, Schneeberg, Saxony, 36180; Zeheen, Saxony, 

 36174; Aue, Sclmeeberg, Saxony, 36181; Silesia, 36168; Triberg, in the Black 

 Forrest, Germany, 36169; Predazzo, Tyrol, 36167; Baveno, Lake Maggiore, Italy, 

 36176; Schrisheim, Baden, 36173; Japan, 11737. 



Hornblende biotite granite: Meissen, Saxony, 36187; Reicheuberg, Saxony, 36107; 

 Markirch, Alsace, Germany, 36185; Kirneekthal, Vosges Mountains, Germany, 

 36184; Vosges Mountains, Germany, 36182; Hohwald, Vosges Mountains, Ger- 

 many, 36183; Odeuwald, Hesse, Germany. 36186; Loch Etive, Argyleshire, Scot- 

 land, 36191; Mount Sorrel, Leicestershire, England, 36189 ; Ilha de Pafueta Bay, 

 Province de Rio Janeiro, Brazil, 69840; Alexandria, Egypt, 26.^15; Egypt, 70168; 

 Lightning Mountain, Stratford, New Hampshire, 29527; Saw Pit Canon, Los 

 Angeles County, California, 387,62 ; Buffalo Creek, Platte Canon, Jefferson 

 County, Colorado, 36192; near Salt Lake City, Utah, 39095. 



Hornblende granite : Otter Creek, Mount Desert, Maine, 35923 ; Bemis Station, New 

 Hampshire, 29524 ; Quincy, Massachusetts, 28556; Jimtown, Elysian Park, Colo- 

 rado, 29264; top of Mount Lyell, California, 37201 ; St. George, New Bruuswick, 

 Canada, 37667; Groby, Leicestershire, England, 36196; Freiberg, Saxony, 3881 ; 

 Elfdalen, Sweden, 36194 ; Upsala, Sweden, 36193; Meissen, Saxony, 3858; Roman- 

 iche, Saone et Loire, France, 38227; Haute Saoue, France, 38260, 38263, and 

 36198; St. Maurice, Vosges Mountains, France, 36195. 



Augite granite : Lavelline, Vosges Mountains, France, 38353. 



Tourmaline granite: Heidelberg, Prussia, 70176; Luxullian, St. Austell, Cornwall, 

 England (Lnxullianite), 36113; Trowlesworth, England (Trowlesworthite), 39002; 

 Govaranno, Tuscany, Italy, 38334 ; Predazzo, Tyrol, 39176. 



Greisen : Zinwald, near Altenberg, Saxony, 3864 and 36165; Geyer, Saxony (with 

 much topaz), 36166. 



Epidote granite : Dedham, Norfolk County, Massachusetts, 36386; Milans Gap, Madi- 

 son County, Virginia (Uuakite), 36784. 



Biotite epidote granite. : Grand River, Colorado, 36027. 



Liihia granite: Near Perus Station, Sao Paulo Railroad, Province de Sao Paulo, Bra- 

 zil, 69819. 



Protogine : Mount Blanc, 36127. 



Binary granite : Middleboro, Missouri (without mica or hornblende), 25115. 



Granite porphyry : Altenberg, Germany, 36219; near Freiberg, Saxony, 3973; Wheal 

 Tremayne, Cornwall, England, 36221 ; Erdmansdorf, Silesia, 36220. 



2. The syenites. 



The name Syenite, from Syene, a tower of Egypt* 



Mineral composition. — The syenites differ from the granites only in 

 the absence of the mineral quartz, consisting essentially of orthoclase 

 feldspar in combination with biotite, or one or more minerals of the 



* The word syenite was first used by Pliny to designate the coarse red granite 

 from quarries at Syene (see specimen 26185 in hornblende-biotite granite series), and 

 used by the Egyptians in their obelisks and pyramids. Afterwards (in 1787) Wer- 

 ner introduced the wordiuto geological nomenclature to desiguate a class of granu' 



