orthoclase

orthoclase noun: potassium aluminum silicate, KAlSi₃O₈, a common feldspar of igneous, plutonic, and metamorphic rocks. Orthoclase is the main feldspar of pegmatite occurrences, where it is most commonly flesh-colored. Orthoclase is used in the ceramic and glass industries and as a decorative gravel.

Image: Dave Dyet http:/ http:/, Public domain, via Wikimedia Commons

Noun

orthoclase (countable and uncountable, plural orthoclases)

Potassium aluminum silicate, KAlSi₃O₈, a common feldspar of igneous, plutonic, and metamorphic rocks. Orthoclase is the main feldspar of pegmatite occurrences, where it is most commonly flesh-colored. Orthoclase is used in the ceramic and glass industries and as a decorative gravel.

orthoclase meaning in Vietnamese

orthoclase in Vietnamese

potassium aluminum silicate: oc-to-cla

Forms of orthoclase

plural	orthoclases

Origin of orthoclase

From ortho- + -clase.

Words formed from orthoclase

orthoclasic

Questions about orthoclase

What does orthoclase mean?: Orthoclase means potassium aluminum silicate, KAlSi₃O₈, a common feldspar of igneous, plutonic, and metamorphic rocks. Orthoclase is the main feldspar of pegmatite occurrences, where it is most commonly flesh-colored. Orthoclase is used in the ceramic and glass industries and as a decorative gravel.
What is orthoclase in Vietnamese?: Orthoclase in Vietnamese is oc-to-cla. See Orthoclase meaning in Vietnamese.
What part of speech is orthoclase?: Orthoclase is a noun.
What is the plural of orthoclase?: The plural of orthoclase is orthoclases.

Words near orthoclase in the dictionary

Adapted from Wiktionary: orthoclase (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Cite this entry: “orthoclase.” Word.ws, https://word.ws/orthoclase. Based on Wiktionary, CC BY-SA 4.0.