Minerals & Gemstone 480x104
Minerals & Gemstone 480x104
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Glossary of Terms
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ALL



Pearly luster
Exhibiting a luster similar to the inside of a mollusk shell or shirt button. Many micas exhibit a pearly luster, and some minerals with a pearly luster have an iridescent hue. Some minerals may exhibit a pearly luster on cleavage cracks parallel and below the reflecting surface of a mineral.



Biotite Mica with a Pearly Luster



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