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



Semi-metal
Element or alloy exhibiting certain properties of the metals and certain properties of the non-metals. The semi-metals are opaque with a metallic luster, and combine with other elements to form minerals as metals do. In all other aspects, they act like non-metals.



Arsenic is a Semi-Metal



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