Fùng-pó-sa̍k
外觀
![](http://upload.wikimedia.org/wikipedia/commons/thumb/8/80/Ruby_-_Winza%2C_Tanzania.jpg/380px-Ruby_-_Winza%2C_Tanzania.jpg)
Fùng-pó-sa̍k (Ruby), he kông-ngiu̍k ke yit-chúng, chú-yeu sṳ̀n-fûn he Yòng-fa-lî (Al2O3), fùng-set lòi-chhṳ Kok (Cr). Chhṳ-yèn mò Kok ke pó-sa̍k he làm-set ke làm-pó-sa̍k.
Fùng-pó-sa̍k (Ruby), he kông-ngiu̍k ke yit-chúng, chú-yeu sṳ̀n-fûn he Yòng-fa-lî (Al2O3), fùng-set lòi-chhṳ Kok (Cr). Chhṳ-yèn mò Kok ke pó-sa̍k he làm-set ke làm-pó-sa̍k.