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orthoclase in British English
(ˈɔːθəʊˌkleɪs, -ˌkleɪz)
noun
a white to pale yellow, red, or green mineral of the feldspar group, found in igneous, sedimentary, and metamorphic rocks. It is used in the manufacture of glass and ceramics. Composition: potassium aluminium silicate. Formula: KAlSi3O8. Crystal structure: monoclinic
orthoclase in American English
(ˈɔrθoʊˌkleɪs; ˈɔrθoʊˌkleɪz; ˈɔrθəˌkleɪs; ˈɔrθəˌkleɪz)
noun
a monoclinic feldspar, KAlSi3O8, that is dimorphic with microcline; potassium aluminum silicate
see also Mohs scale Word origin
Ger orthoklas < Gr orthos (see ortho-) + klasis, fracture (< klan, to break: see clastic), because of the 90° cleavageImage oforthoclase
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Word lists withorthoclase
mineral- enteropneustal
- enteroptosis
- enterostomal
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- enterotomy
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- enteroviral
- enterovirus
- enter politics
- enterprise
- enterprise allowance scheme
- enterprise investment scheme
- enterpriser
- showerer
- showerful
- shower gel
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- shower head
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