English

In search of minerals

Partial contents: Minerals and their homes -- Gems or precious stones : the diamond and ruby -- Precious stones, continued : the emerald, zircon or hyacinth, topaz, spinelle, tourmaline,and garnet groups -- Quartz gems -- The softer gems and valuable stones -- Valuable minerals derived from the vegetable and animal kingdoms : jet, amber, pearl, coral -- Useful non-metallic minerals -- Native metals -- Ores or minerals yielding commong and useful metals -- Useful minerals being ores of the less important metals.

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