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QuestionAnswer
The color of the powder produced by pulverizing a mineral on an unglazed ceramic plate. streak
The smoothly curving, clamshell-shaped surface that may form when a mineral with no cleavage planes breaks. Conchoidal fracture
The way a mineral surface reflects light. luster
A number representing the density of a mineral, as specified by the ratio between the weight of a volume of the mineral and the weight of an equal volume of water. specific gravity
The tendency of a mineral specimen to break along preferred planes whose orientation is defined by the internal crystal structure of the specimen. cleavage
A measure of the relative ability of a mineral to resist scratching; it represents the resistance of bonds in the mineral to being broken. hardness
Created by: regannerobinson
 

 



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