• 作者： 羅煥記
• 作者服務機構： 國立臺灣大學地質研究所
• 中文摘要： 天然玻璃質玄武岩加人碳酸鉀、鈉，氯化鈉溶液及蒸餾水，在下列條件：溫度攝氏二○○至四○○度，壓力七,五○○至四○，○○○磅／吋 ，時間十小時至四六天，進行合成實驗。本實驗合成了方沸石，毛沸石和鈣十字石等三種沸石。溶液及溫度對這些沸石的合成有顯著的影響。方沸石在所有使用的溶液中，都容易合成，而較適合的條件是：二摩爾碳酸鈉，及一或二摩爾碳酸鉀的混合溶液，溫度在攝氏二六○至三○○度間，二○至二五天的時間。毛沸石可在高濃度的碳酸鉀、鈉及氯化鈉溶液中合成，而較理想的條件是：二至三摩爾碳酸鈉溶液，溫度在攝氏二七○至二九○度間，十五至二○天的時間。鈣十字石只能在高濃度碳酸鉀溶液中合成，唯一合成的條件是：三摩爾碳酸鉀溶液，攝氏二六八度，四六天。毛沸石和鈣十字石的合成需含鹼金屬高的物質，因此，這兩種沸石只出現在鹼性玄武岩。方沸石在含鹼金屬高及低的環境都能合成，所以，它在鹼性玄武岩及矽質玄武岩都可出現。
• 英文摘要： Hydrothermal experiments on natural basaltic glass in the presence of alkaline carbonate solution,
  sodium chloride solution and distilled water under temperature range of 200?－400℃, pressure range of
  7,500-40,000 psi and 10 hours-46 days' run duration have been carried out. Analcime, erionite and phil-
  lipsite have been synthesized. Liquid reactants and temperature have profound effects on the synthesis of
  these zeolites. Analcime can readily be synthesized in all of the reactants used, and the most favorable
  conditions for its formation are：2M sodium carbonate solution mixed with 1 or 2M potassium carbonate
  solution; temperature range of 260?-300℃, and 20-25 days' run duration. Erionite can be synthesized in
  various concentration of alkaline carbonate solutions and high concentration of sodium chloride solutions
  （＞0.8M）, and the most favorable conditions for its formation are: 2-3M sodium carbonate solutions；tem-
  perature range of 270?-290℃, and 15-20 days' run duration. Phillipsite can be produced only in high con-
  centration of potassium carbonate solution and the condition for the synthesis of this mineral is: 3M potas-
  sium carbonate solution; 270℃, and 46 days' run duration. The synthesis of erionite and phillipsite re-
  quires an alkali-rich source material, and therefore these zeolites are usually found in alkali-rich basalts. On
  the other hand, analcime can easily be synthesized from alkali-rich to alkali poor source materials, con-
  sequently, it can be found in basalts from alkali-rich to tholeiitic types.
  t
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