Definition of sanidine in English:

sanidine

noun ˈsanɪdiːnˈsanəˌdēn

mass noun

A glassy mineral of the alkali feldspar group, typically occurring as tabular crystals.
Example sentencesExamples
- Feldspar (including sanidine and plagioclase) separates were handpicked from a 62-125 mm sieve fraction crushed from megacrysts.
- At temperatures above about 660°C complete solid solution occurs between the two alkali feldspar end-members sanidine and high albite, but below this there is a break and two feldspars of different composition occur together.
- The dominant non-clay mineral composition of the coarse fraction consists of biotite, quartz, and sanidine with lesser amounts of apatite and zircon.
- The majority of the rhyolites are porphyritic and contain phenocrysts of one or more of the following: plagioclase, clinopyroxene, magnetite, quartz and sanidine, plus accessory apatite and zircon.
- Closer to the contact microcline is replaced by sanidine, and perthitic exsolution in detrital alkali feldspar begins to disappear.

Origin

Early 19th century: from Greek sanis, sanid- 'board' + -ine⁴.

Definition of sanidine in US English:

sanidine

nounˈsanəˌdēn

A glassy mineral of the alkali feldspar group, typically occurring as tabular crystals.
Example sentencesExamples
- The majority of the rhyolites are porphyritic and contain phenocrysts of one or more of the following: plagioclase, clinopyroxene, magnetite, quartz and sanidine, plus accessory apatite and zircon.
- Feldspar (including sanidine and plagioclase) separates were handpicked from a 62-125 mm sieve fraction crushed from megacrysts.
- At temperatures above about 660°C complete solid solution occurs between the two alkali feldspar end-members sanidine and high albite, but below this there is a break and two feldspars of different composition occur together.
- Closer to the contact microcline is replaced by sanidine, and perthitic exsolution in detrital alkali feldspar begins to disappear.
- The dominant non-clay mineral composition of the coarse fraction consists of biotite, quartz, and sanidine with lesser amounts of apatite and zircon.

Origin

Early 19th century: from Greek sanis, sanid- ‘board’ + -ine.

单词	sanidine
释义	Definition of sanidine in English: sanidine noun ˈsanɪdiːnˈsanəˌdēn mass noun A glassy mineral of the alkali feldspar group, typically occurring as tabular crystals. Example sentencesExamples Feldspar (including sanidine and plagioclase) separates were handpicked from a 62-125 mm sieve fraction crushed from megacrysts. At temperatures above about 660°C complete solid solution occurs between the two alkali feldspar end-members sanidine and high albite, but below this there is a break and two feldspars of different composition occur together. The dominant non-clay mineral composition of the coarse fraction consists of biotite, quartz, and sanidine with lesser amounts of apatite and zircon. The majority of the rhyolites are porphyritic and contain phenocrysts of one or more of the following: plagioclase, clinopyroxene, magnetite, quartz and sanidine, plus accessory apatite and zircon. Closer to the contact microcline is replaced by sanidine, and perthitic exsolution in detrital alkali feldspar begins to disappear. Origin Early 19th century: from Greek sanis, sanid- 'board' + -ine⁴. Definition of sanidine in US English: sanidine nounˈsanəˌdēn A glassy mineral of the alkali feldspar group, typically occurring as tabular crystals. Example sentencesExamples The majority of the rhyolites are porphyritic and contain phenocrysts of one or more of the following: plagioclase, clinopyroxene, magnetite, quartz and sanidine, plus accessory apatite and zircon. Feldspar (including sanidine and plagioclase) separates were handpicked from a 62-125 mm sieve fraction crushed from megacrysts. At temperatures above about 660°C complete solid solution occurs between the two alkali feldspar end-members sanidine and high albite, but below this there is a break and two feldspars of different composition occur together. Closer to the contact microcline is replaced by sanidine, and perthitic exsolution in detrital alkali feldspar begins to disappear. The dominant non-clay mineral composition of the coarse fraction consists of biotite, quartz, and sanidine with lesser amounts of apatite and zircon. Origin Early 19th century: from Greek sanis, sanid- ‘board’ + -ine.
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