sanidine

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noun

A variety of orthoclase feldspar found as tabular crystals embedded in volcanic rocks. Some forms (called moonstone) exhibit adularescence.

OriginAncient Greek σανίς →
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Meanings

nounsanidine (countable and uncountable, plural sanidines)

plural sanidines

  1. countableuncountablechemistryA variety of orthoclase feldspar found as tabular crystals embedded in volcanic rocks. Some forms (called moonstone) exhibit adularescence.

Origin

  1. Ancient Greekσανίς“board”
  2. Englishsanidine

From Ancient Greek σανίς (sanís, “board”) + -ine.

More words from Ancient Greek

Full word history & related roots →

Translations

Finnish sanidiini
  • sanidiinivariety of orthoclase feldspar
Italian sanidino
  • sanidinovariety of orthoclase feldspar
Japanese 玻璃長石
  • 玻璃長石 (harichōseki)variety of orthoclase feldspar
Cite this entry
APA

sanidine. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/sanidine

MLA

“sanidine.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sanidine. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “sanidine,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/sanidine.

Source: sanidine on Wiktionary, CC BY-SA 4.0.