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This website is a participant of the 18th Japan Junior and Senior Highschool Web Contest.
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The Road to becoming a Ore Mineral Master
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| HOMEVOCABULARY Streak | ||||||||||
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| Streak | ||||||||||
| The line of powder obtained by scratching a mineral or rubbing it upon a hard, rough white surface, often differing in color from the mineral in the mass, and serving as an important distinguishing character. | ||||||||||
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