This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 Excerpt: ...white, brown, black. Vitreous luster. H = 5--6; G = 3.2--3.6. The pyroxenes are very important rock-forming minerals, the alumina variety augite being an essential constituent of most of the basic eruptives and is occasionally found in syenites and granites. The light colored non-aluminous varieties are more ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1914 Excerpt: ...white, brown, black. Vitreous luster. H = 5--6; G = 3.2--3.6. The pyroxenes are very important rock-forming minerals, the alumina variety augite being an essential constituent of most of the basic eruptives and is occasionally found in syenites and granites. The light colored non-aluminous varieties are more characteristic of me'tamorphic limestone and schist. Malacolite. Lime-magnesia pyroxene, CaMg(SiO3)2. A white pyroxene often found in crystalline limestone near contact with eruptives. Diopside. Lime-magnesia pyroxene, CaMg(SiO3)2 with ferrous iron. A light to deep grass-green pyroxene, characteristic of crystalline limestone, metamorphosed eruptive and some schists. Diallage. Lamellar or fibrous pyroxene near diopside in composition. Characteristic of gabbros. Omphacite. A granular non-aluminous pyroxene. Characteristic of eclogites in association with garnet. Augite. Iron-alumina pyroxene. Dark green to black and commonest of all the pyroxenes. An essential constituent of diorites, gabbros, diabases, basalts, andesites, pyroxenites and other basic eruptives. Mentioned in all petrographic descriptions of basic igneous rocks. Violan. A variety name for a violet-colored augite. Hedenbergite. An iron-rich pyroxene. Contra Costa County: Diopside is common in the schists with albite near San Pablo and has been described and analysed by Blasdale(1). Si02. Al-O3 Fe203 FeO MgO CaO Fresh 51.91 3.55 1.30 2.65 16.15 22.85 Altered 49.62 2.97 2.49 2.99 19.72 19.14 H.O Na.O at 100 ab. 100 TiO- MnO Fresh 0.56 0.21 0.86 0.10 0.33 =100.47% Altered 0.60 2.71._ __ =100.24 El Dorado County: Diallage is a constituent of gabbro on Mount Diablo. Inyo County: Masses of malacolite have come from the Panamint Mountains. Lake County: Violan occurs in Big Canyon...
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Add this copy of Minerals of California to cart. $18.00, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Minerals of California to cart. $20.00, good condition, Sold by The Book Bin rated 5.0 out of 5 stars, ships from Salem, OR, UNITED STATES, published 1914 by State Printing Office.
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Seller's Description:
Good. 226pp. Boards are rubbed. Previous owner's name written on front free endpaper. Pages are mostly clean and bright, occasional small stains. Binding is sound. Size: 8vo-over 7 3/4 in-9 3/4 in Tall. Year: 1914.
Add this copy of Minerals of California to cart. $28.30, new condition, Sold by Ingram Customer Returns Center rated 5.0 out of 5 stars, ships from NV, USA, published 2022 by Legare Street Press.
Add this copy of Minerals of California to cart. $58.41, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Newport Coast, CA, UNITED STATES, published 2019 by Wentworth Press.