Hello, you have come here looking for the meaning of the word oligoclase. In DICTIOUS you will not only get to know all the dictionary meanings for the word oligoclase, but we will also tell you about its etymology, its characteristics and you will know how to say oligoclase in singular and plural. Everything you need to know about the word oligoclase you have here. The definition of the word oligoclase will help you to be more precise and correct when speaking or writing your texts. Knowing the definition ofoligoclase, as well as those of other words, enriches your vocabulary and provides you with more and better linguistic resources.
(mineralogy) A plagioclasefeldspar, 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.