oligoclase
oligoclase noun: a plagioclase feldspar, the second member of the Albite-Anorthite solid solution series. Primarily found as small crystals in impure marble. Oligoclase contains a small amount of calcium substituting for some of the sodium in its formula. Oligoclase with reddish-golden inclusions found in Norway and Canada is called sunstone.
Noun
oligoclase (usually uncountable, plural oligoclases)
- A plagioclase feldspar, the second member of the Albite-Anorthite solid solution series. Primarily found as small crystals in impure marble. Oligoclase contains a small amount of calcium substituting for some of the sodium in its formula. Oligoclase with reddish-golden inclusions found in Norway and Canada is called sunstone.
Forms of oligoclase
| plural | oligoclases |
|---|
Origin of oligoclase
From oligo- + -clase.
Questions about oligoclase
- What does oligoclase mean?
- Oligoclase means a plagioclase feldspar, the second member of the Albite-Anorthite solid solution series. Primarily found as small crystals in impure marble. Oligoclase contains a small amount of calcium substituting for some of the sodium in its formula. Oligoclase with reddish-golden inclusions found in Norway and Canada is called sunstone.
- What part of speech is oligoclase?
- Oligoclase is a noun.
- What is the plural of oligoclase?
- The plural of oligoclase is oligoclases.
Words near oligoclase in the dictionary
Source and license
Adapted from Wiktionary: oligoclase (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.
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Cite this entry: “oligoclase.” Word.ws, https://word.ws/oligoclase. Based on Wiktionary, CC BY-SA 4.0.