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・ Black Tie Dinner
・ Black Tie Dynasty
・ Black Tie Nights
・ Black Tie White Noise
・ Black Tie White Noise (song)
・ Black Tiger
・ Black Tiger (album)
・ Black tiger (animal)
・ Black Tiger (professional wrestling)
・ Black Tiger (rapper)
・ Black Tiger (video game)
・ Black Tiger Spring
・ Black Tigers
・ Black Tight Killers
・ Black Tights
Black tin
・ Black tinamou
・ Black Titan
・ Black titi
・ Black to Gold
・ Black to the Blind
・ Black to the Future
・ Black toad
・ Black Toast Music
・ Black Toast Records
・ Black Tom
・ Black Tom Cassidy
・ Black Tom explosion
・ Black Toney
・ Black Tooth Mountain


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Black tin : ウィキペディア英語版
Black tin

Black tin is the raw ore of tin, usually cassiterite, as sold by a tin mine to a smelting company. After mining, the ore has to be concentrated by a number of processes to reduce the amount of gangue it contains before it can be sold. It contrasts with white tin, which is the refined, metallic tin produced after smelting.
The term "black tin" was historically associated with tin mining in Devon and Cornwall.
==References==

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抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
ウィキペディアで「Black tin」の詳細全文を読む



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