Bilingual edition: English is preserved and Chinese follows each unit. Terminology uses the confirmed v20260916 glossary; automated semantic review remains traceable.
中英双语版：英文原文完整保留，中文紧随对应单元；术语采用 v20260916 确认表，自动语义审校结果可追溯。

Heulandite

海兰石

(Ba,Ca,K,Na,Sr)5Al9Si27O72 .22H2O

These samples of heulandite are displayed in the Smithsonian Museum of Natural History. Heulandite is a silicate mineral which can have a variety of metal ions (Ba,Ca,K,Na,Sr) It has the general composition (Ba,Ca,K,Na,Sr)5Al9Si27O72.22H2O. Besides the big-8 elements, it contains barium and strontium. The sample at left is described as heulandite with stilbite and quartz. It is about 5x17 cm and is from Berufjordur, Iceland. This particular sample is labeled with the composition (Ba,Ca,K,Na,Sr)5Al9Si27O72.26H2O.

这些海绿石样本陈列在史密森尼自然历史博物馆中。海绿石是一种硅酸盐矿物，可以含有多种金属离子（钡、钙、钾、钠、锶）。其一般化学式为（Ba,Ca,K,Na,Sr）5Al9Si27O72·22H2O。除了常规元素外，它还含有钡和锶。左侧的样本被描述为海绿石与石英和石英一起存在。其尺寸约为5x17厘米，来自冰岛的Berufjordur。该样本标注的化学式为（Ba,Ca,K,Na,Sr）5Al9Si27O72·26H2O。

This sample of heulandite is about 5x8 cm is from Teigarhorn, Berufjordur, Iceland.

这种海绿石样本尺寸约为5厘米×8厘米，来自冰岛伯鲁福德湾的泰加 Horn。

Mindat: Heulandite

Mindat: Heulandite（专名或术语）
Minerals
矿物
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