경북 동해지방에서 채집한 천연비석 또는 silicate 중 대표적인 8가지의 시료를 화학분석, D.T.A 및 X-선회분석법으로 분석한 결과 비석은 석영과 장석이 많이 섞인 cilinoptilolite가 주성분이었으며 드물게 heulandite와 mordenite를 확인할 수 있었다. 그 이외 silicate로서 montmorillonite, kaolinite와 illite의 존재를 확인할 수 있었다.
HCl 및 NaOH 용액으로 처리된 시료는 H₂O, C₂H₅OH 및 C₆H₆에 대한 흡착제로서의 활성이 있었으며, 또한 이들 시료의 CO 및 CO₂ gas에 대한 흡착량도 1기압 25 ℃에서 측정되었다. 그리고 천연비석과 Linde molecular sieve의 흡착량을 비교한 결과, 산-염기 연속처리한 천연비석이 H₂O, C₂H₅OH, C₆H₆ 및 다른 gas에 대하여 우수하였다.

The eight representative samples of zeolites or silicates obtained from eastern coastal area of Kyungpook were analyzed by means of chemical wet method, DTA and X-ray diffraction. As the result, it was recognized that the primary species of zeolite was known to be clinoptilolite mixed with quartz and feldspar. Very seldom heulandites or mordenites were also found. Montmorillonite, kaolinite, and illite ware also known as components of silicates. And the samples treated with HCl or NaOH solution were activated to be the adsorbent for the adsorption of vapors of H₂O, C₂H₅OH and C₆H₆ through Diamond Kinter method. The adsorption capacities of these minerals against CO and CO₂ gas under 1 atm 25 ℃ were also measured by modified B.E.T. method. And the comparisons between the measured adsorption capacities of natural zeolites and Linde molecular sieve were made. The natural zeolites prepared by the acid-base consecutive treatment exhibited to be good adsorbent for H₂O, C₂H₅OH, C₆H₆ and other gases.