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Pitchblende is a dark, shiny stuff dug out of the earth. It looks a little like hard tar, which is why pitch is in the name. From pitchblende, scientists get uranium, and from that they later got radium too. It is famous because Marie Curie spent years working with it when she was looking for radium. You will see this word in science class or in history about those early discoveries, not in daily talk. Though actually, scientists now often use a tidier name for the mineral; pitchblende is the old name people still use for this dark, tar-like kind. It is the rock, not the metals taken from it.
瀝青鈾礦（這裡的「瀝青」是看起來像柏油，不是音樂的音高）
組成From German Pechblende: Pech (pitch, the tar) + Blende (blende, an old miners' name for certain shiny ores).
同家族的字
- pitchEnglish pitch meaning tar; German Pech in the original name is that same sticky black stuff
- blendean old name for certain shiny ores; German Blende is the second half of Pechblende
- hornblendeanother mineral name built with the same German Blende
原始詞典資料1 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
pitchblendenoun/ˈpɪtʃblɛnd/
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chemistrygeographygeologyNaturally-occurring uranium oxide, a variety of the mineral uraninite.
- Working in Paris in 1898, Marie and Pierre Curie processed thousands of pounds of pitchblende from the same glass-factory tailings in order to isolate two radioactive elements that had hitherto been unknown: radium and polonium.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。