NOUN
- a group of minerals of the zeolite family consisting of a hydrous aluminum silicate of sodium and calcium
How To Use heulandite In A Sentence
- This calcite typically overgrows quartz and crystallizes before heulandite, stilbite, and apophyllite.
- 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.
- Here, spectacularly large groups of scolecite, heulandite, apophyllite, and associated minerals occurred in cavities in flood basalt.
