How To Use Heulandite In A Sentence

• This calcite typically overgrows quartz and crystallizes before heulandite, stilbite, and apophyllite.
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• Most of the cavities are filled or lined with crystalline formations of various zeolites, such as stilbite, scolecite, and heulandite, plus calcite and apophyllite; these minerals typically occur in combination with each other.
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• Here, spectacularly large groups of scolecite, heulandite, apophyllite, and associated minerals occurred in cavities in flood basalt.
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