Visitor are invited to observe large- and medium-sized specimens for which indoor exhibition space is inadequate. Specimens of rocks, minerals and fossils are displayed, including limestone, gneiss, conglomerate, calcite, petrified wood, concretions, ammonites and many other.
BasaltJeju Island, Korea
Basalt is a typical extrusive volcanic rock that forms when a basic lava flowing on the surface or intruding into shallow depths cools down. There are many pores, which are usually traces of volcanic gas, and in the case of slowly flowing lava, the shape of rope is made on the surface of a basalt.
Petrified wood Pohang, Korea
Before trees buried in sediments were decomposed by microorganisms, the surrounding minerals penetrated into the woody tissues and the tree shapes and tissues were preserved as fossils.
Septaria Pohang, Korea
Clayey carbonate concretion. Cracks formed during water escaping from the inside and shrinking look like turtle shells, and are called "turtle shell rock (septaria)". Cracks are filled with calcite or quartz.
Columnar basalt Pohang, Korea
Columnar basalts are joints developed in columnar shape by contraction of basaltic lava flows or intrusive rocks during cooling, and in the cross section, the shape of the polygon is clearly visible. These joints are seen in the Haegeum River, western coast of Seogwipo in Jeju Island, and Ulleung Island.