Corsi's classification: | Class 14. Quartz and its varieties; Species 2. Amethyst |
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Corsi's text: | 178.2 Amatista... Trovasi in molti luoghi. |
Corsi's classification: | Class 14. Quartz and its varieties; Species 2. Amethyst |
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Corsi's text: | 178.2 Amatista... Trovasi in molti luoghi. |