felspar การใช้

• Except these last, practically all rocks contain felspars or feldspathoid minerals.
• The presence of Potassium felspar indicates arid conditions were prevalent at the time.
• The alternate spelling, " felspar ", has largely fallen out of use.
• This valley is so-called because of the mineral felspar which glistens in the sunlight.
• Felspar and quartz may be present.
• Their geological formation is metamorphic gneiss, veined with felspar and quartz, and interspersed with reddish porphyrite.
• Pink felspar cliffs drop steeply into the water, and small lush woodland lends a touch of luxury ."
• Rocks that contain leucite or nepheline, either partly or a wholly replacing felspar, are not included in this table.
• The fragments of rocks, thus exposed are of a bright red; and are derived from a slate similar to that which succeeds the felspar-rocks north of Cardrew ."
• He published observations on the geology and mineralogy of Spain and Italy as well as that of central and northern Europe : he wrote on gypsum, pyrites, felspar, tachylite, cordierite and on some eruptive rocks, and devoted much attention to the crystals developed during metallurgical processes.
• There is abundance of deposit of Coal, Bauxite, Laterite, Dolomite, and Graphite etc . Granite, Quartz, Fireclay, Felspar etc . The excavation and exploration of these minerals have provided job opportunities to the inhabitants of this hinterland to some extent because these minerals have not been fully explored at large scale and there are no mineral based industries in the district.
• In Spode's similar " Felspar porcelain ", introduced on the market in 1821, felspar was an ingredient, substituted for the Cornish stone in his standard bone china body, giving rise to his slightly misleading name " Felspar porcelain, " to what is in fact an extremely refined stoneware comparable to the rival " Mason's ironstone ", produced by Josiah II's nephew, Charles James Mason, and patented in 1813 Spode's " Felspar porcelain " continued into the Copeland & Garrett phase of the company ( 1833 1847 ).
• In Spode's similar " Felspar porcelain ", introduced on the market in 1821, felspar was an ingredient, substituted for the Cornish stone in his standard bone china body, giving rise to his slightly misleading name " Felspar porcelain, " to what is in fact an extremely refined stoneware comparable to the rival " Mason's ironstone ", produced by Josiah II's nephew, Charles James Mason, and patented in 1813 Spode's " Felspar porcelain " continued into the Copeland & Garrett phase of the company ( 1833 1847 ).
• In Spode's similar " Felspar porcelain ", introduced on the market in 1821, felspar was an ingredient, substituted for the Cornish stone in his standard bone china body, giving rise to his slightly misleading name " Felspar porcelain, " to what is in fact an extremely refined stoneware comparable to the rival " Mason's ironstone ", produced by Josiah II's nephew, Charles James Mason, and patented in 1813 Spode's " Felspar porcelain " continued into the Copeland & Garrett phase of the company ( 1833 1847 ).
• In Spode's similar " Felspar porcelain ", introduced on the market in 1821, felspar was an ingredient, substituted for the Cornish stone in his standard bone china body, giving rise to his slightly misleading name " Felspar porcelain, " to what is in fact an extremely refined stoneware comparable to the rival " Mason's ironstone ", produced by Josiah II's nephew, Charles James Mason, and patented in 1813 Spode's " Felspar porcelain " continued into the Copeland & Garrett phase of the company ( 1833 1847 ).