赤嶼東南側約1公里的海蝕平台上，有一列向北延伸突出的岩脈，這些岩脈為鹼性玄武岩，岩性緻密黝黑，其中富含橄欖石與輝石的團塊，這是熔岩流噴出時所擄獲的，是澎湖地區認識橄欖石與輝石的最佳場所。由於外觀形態與一般玄武岩截然不同，當地居民認為是外來的東西，而冠上「番」字，故名為「番仔石」。橄欖石團塊玄武岩是因為鹼性玄武岩熔岩噴發，岩漿上升過程中，捕獲岩漿庫或岩漿噴發管道周圍的橄欖石所造成，這些擄獲的岩塊中，橄欖石的顏色一般為黃綠色，墨綠色的是輝石類礦物，有時可見到較大顆粒的橄欖石晶體。澎湖的鹼性玄武岩中都會或多或少的存在一些橄欖岩，尤其番仔石和查坡嶼更加富集有許多橄欖石團塊。本中心收藏標本採集自湖西鄉赤嶼。
赤嶼東南側約1公里的海蝕平台上，有一列向北延伸突出的岩脈，這些岩脈為鹼性玄武岩，岩性緻密黝黑，其中富含橄欖石與輝石的團塊，這是熔岩流噴出時所擄獲的，是澎湖地區認識橄欖石與輝石的最佳場所。由於外觀形態與一般玄武岩截然不同，當地居民認為是外來的東西，而冠上「番」字，故名為「番仔石」。橄欖石團塊玄武岩是因為鹼性玄武岩熔岩噴發，岩漿上升過程中，捕獲岩漿庫或岩漿噴發管道周圍的橄欖石所造成，這些擄獲的岩塊中，橄欖石的顏色一般為黃綠色，墨綠色的是輝石類礦物，有時可見到較大顆粒的橄欖石晶體。澎湖的鹼性玄武岩中都會或多或少的存在一些橄欖岩，尤其番仔石和查坡嶼更加富集有許多橄欖石團塊。本中心收藏標本採集自湖西鄉赤嶼。
On the marine erosion platform about 1 km southeast of Chiyu, there is a series of rock dikes extending to the north. These dikes are alkaline basalt, densedark in lithologyrich in olivinepyroxene agglomerates, which were captured when the lava flow erupted. It is the best place to know olivinepyroxene in the Penghu area. As its appearance is completely different from the general basalt, the local residents think it is something from abroadthe word "fan (foreign)" is crowned. So, it is called "fanzi stone". The olivine mass basalt is caused by the eruption of alkaline basalt lava. During the ascent of lava, the olivine around the lava chamberslava eruption channels is captured. Among these captured rock blocks, the color of olivine is generally yellow-green,pyroxene minerals are dark green. Sometimes, larger olivine crystals may be seen as well. There are moreless olivines in the alkaline basalt of Penghu, with “fanzi stone”Chabo Islet being much more enriched with many olivine agglomerates. The specimens collected by this center are from Chiyu, Huxi Township.
