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Description: | Mineral specimen of Heulandite associated with Lava. Collected from Iceland
Heulandite is one of the zeolite group of minerals. It was named after John Henry Heuland, a mineral collector and dealer. Crystals of heulandite typically have a glassy to pearly lustre. This mineral is commonly found in cavities and vesicles (gas bubbles) in volcanic rocks such as basalt. This example is from Iceland, where there are extensive lava flows. Heulandite has a widespread distribution. Other localities include Poona in India, Scotland and Switzerland.
The specimen was found in Iceland. | Publisher: | Tyne & Wear Archives & Museums | Subjects: | Classification: Heulandite | Temporal: | Carboniferous period (362 - 290 million years ago) | Source: | Tyne & Wear Archives & Museums | Identifier: | http://www.twmuseums.org.uk/geofinder/se... | Go to resource |
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