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



Pitchy
Luster of a mineral that appears similar to tar. Minerals with a pitchy luster are often radioactive and have gone through the process of metamiction.



Pitchblende with a Pitchy Luster



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