cassiterite

英 [kə'sɪtəraɪt] 美 [kə'sɪtəraɪt]

• n. 锡石

英英释义

Noun:

1. a hard heavy dark mineral that is the chief source of tin

例句

用作名词 (n.)

1. Cassiterite has been an important tin ore for eons and is still the greatest source of tin today.
   锡石作为一种重要的锡矿石已有数十亿年的历史，时至今日仍然是锡的重要来源。