The source of this creek is on the east slope of Glaucophane Ridge, of the Diablo Range in San Benito County.
12.
More than 60 minerals can be found on the island, particularly blue glaucophane ( observable on the surface ), epidote or garnet.
13.
Schists are also named for their prominent or perhaps unusual mineral constituents, as in the case of garnet schist, tourmaline schist, and glaucophane schist.
14.
The first two are blue fibrous minerals, with glaucophane occurring in blueschists and crocidolite ( blue asbestos ) in ironstone formations, both resulting from dynamo-metamorphic processes.
15.
He did research on the Mesozoic formations of southern Oregon, the relation of radioactivity to vulcanism, the glaucophane of the Pacific Coast Ranges, and the stratigraphy of Mount Diablo.
16.
Glaucophane schists are characterized by low temperature ( 100 250 �C ) high pressure ( 4-9 kbar ) metamorphism ( Deer, Howie, Zussman et al ., 1992 ).
17.
It is also found within natrolite veins in glaucophane schist within serpentinite in San Benito County, California, US . It also occurs in Mont Saint-Hilaire, Quebec and in the Kola Peninsula of Russia.
18.
For instance, specimens of glaucophane-epidote schist, containing garnet, sphene and diallage collected by Eccles from several feet below the summit of Monte Viso were described in an 1889 paper " On Fulgurites from Monte Viso " by Dr Frank Rutley FGS.
19.
"' Glaucophane "'is the name of a mineral and a mineral group belonging to the sodic amphibole supergroup of the double chain inosilicates, with the chemical formula & Na 2 ( Mg 3 Al 2 ) Si 8 O 22 ( OH ) 2.
20.
:: : There are outcrops of the Franciscan Complex in the area, which includes blueschists ( at least in some places ) that have visible glaucophane and lawsonite, minerals that give it the characteristic blue colour ( mainly the glaucophane ), but I can't tell if this is what is in the picture . talk ) 22 : 45, 3 February 2011 ( UTC)
