正長石 - 维基百科，自由的百科全书
WEB正长石（英語：Orthoclase)，是钾长石（KAlSi 3 O 8 ）的亚稳相变体 [2] ，是不可溶性钾盐 矿物。其理论成分为：SiO 2 （64.7%）、Al 2 O 3 （18.4%）、K 2 O（16.9%） [3] 。钾长石结构态为低正长石，其次为中正长石，少数为中微斜长石。 [4]
Orthoclase - Wikipedia
WEBOrthoclase is a common constituent of most granites and other felsic igneous rocks and often forms huge crystals and masses in pegmatite. Typically, the pure potassium endmember of orthoclase forms a solid solution with albite, the sodium endmember (NaAlSi 3 O 8), of plagioclase.
Orthoclase: Pink granite, Mohs hardness and moonstone - Geology.com
WEBOrthoclase is a feldspar mineral with a chemical composition of KAlSi 3 O 8. It is one of the most abundant rock-forming minerals of the continental crust. Orthoclase is most widely known as the pink feldspar found in many granites and as the mineral assigned a hardness of "6" in the Mohs hardness scale. ADVERTISEMENT.
Mohs scale - Wikipedia
WEBThe Mohs scale (/ moʊz / MOHZ) of mineral hardness is a qualitative ordinal scale, from 1 to 10, characterizing scratch resistance of minerals through the ability of harder material to scratch softer material.
Orthoclase Meanings and Crystal Properties - The ... - The Crystal …
WEBOrthoclase, also known as K-spar and K-feldspar, is a common potassium feldspar mineral that crystallizes in the form of masses, small prismatic shards, elongated crystals, and thin plate-like layers. It can form on most granites and pegmatites, as well as being one of the main chemical components of Moonstone.
WEBcutting the orthoclase cryptoperthite are thin (<1 ~m) seams of tartan microcline with sharp boundaries, often defined locally by {110} planes, and micropores. The microcline has replaced orthoclase by solution-redeposition along narrow planes infiltrated by fluid during minor retrogression
GEO143 Mineral Webpages - Orthoclase - Google Sites
WEBOrthoclase , as well as sanidine and microcline, is used to make glass and clay materials like porcelain, ceramic tiles, and ceramic glazes. It’s mostly used as aggregate for concrete and...
WEBoRTHOCLASE -MICROCLINE INVERSION 355 VARIATIONS IN THE MICROCLINE LATTICE. In 1950 Laves considered that microcline and triclinic adularia should be regarded as separate modifications of potash-rich felspar, and he gives lattice angles 'characteristic' of each form even in a more recent paper
Orthoclase - Smithsonian National Museum of Natural History
WEBOrthoclase can be found as a transparent colorless, champagne, or yellow gem resembling citrine quartz or yellow beryl. This 250-carat gem is rare because of its size, transparency, and vibrant yellow color.
正长石 - 百度百科
WEB简介. 播报. 编辑. 化学成分K [AlSi3O8]，其中K2O为16.90%，Al2O3为18.4%，SiO2为64.7%，常含有钠长石Na [AlSi3O8]，有时达30%，并常有铁、钡、铷、铯等混入。 单斜晶系。 晶体呈短柱状或厚板状，常见双晶为卡斯巴双晶，有时呈粒状或块状集合体。 呈肉红、浅黄白、浅黄红色。 玻璃光泽。 两组完全解理。 硬度6，比重2.57。 主要产于中、酸性和碱性岩浆岩、各种片麻岩、混合岩中。 风化后变为高岭土。 用于作绝缘电瓷和瓷器釉药的 …
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