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Granodiorite (/ ˌ ɡ r æ n oʊ ˈ d aɪ. ə r aɪ t, ˌ ɡ r æ n ə ˈ-/ GRAN-oh-DY-ə-ryte, GRAN-ə-) [1] [2] is a coarse-grained intrusive igneous rock similar to granite, but containing more plagioclase feldspar than orthoclase feldspar. The term banatite is sometimes used informally for various rocks ranging from granite to diorite ...
Rocks with greater than 90% felsic minerals can also be called leucocratic, [4] from the Greek words for white and dominance. Felsite is a petrologic field term used to refer to very fine-grained or aphanitic , light-colored volcanic rocks which might be later reclassified after a more detailed microscopic or chemical analysis.
True granite (according to modern petrologic convention) contains between 20% and 60% quartz by volume, with 35% to 90% of the total feldspar consisting of alkali feldspar. Granitic rocks poorer in quartz are classified as syenites or monzonites, while granitic rocks dominated by plagioclase are classified as granodiorites or tonalites.
Plagioclase displaying cleavage. (unknown scale) In volcanic rocks, fine-grained plagioclase can display a "microlitic" texture of many small crystals. Plagioclase (/ ˈ p l æ dʒ (i) ə ˌ k l eɪ s, ˈ p l eɪ dʒ-,-ˌ k l eɪ z / PLAJ-(ee)-ə-klayss, PLAYJ-, -klayz) [4] is a series of tectosilicate (framework silicate) minerals within the feldspar group.
bytownite (70 to 90) (NaSi,CaAl)AlSi 2 O 8; anorthite (90 to 100) CaAl 2 Si 2 O 8; Intermediate compositions of exsolve to two feldspars of contrasting composition during cooling, but diffusion is much slower than in alkali feldspar, and the resulting two-feldspar intergrowths typically are too fine-grained to be visible with optical microscopes.
Clear finishes are intended to make wood look good and meet the demands to be placed on the finish. Choosing a clear finish for wood involves trade-offs between appearance, protection, durability, safety, requirements for cleaning, and ease of application. The following table compares the characteristics of different clear finishes.