Collection grade natural colourless Stilbite crystal clusters in Druzy Quartz lined basalt vug geode (0.22kg).
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In its pure form, it is also referred to as Sard (colored with iron oxide) a green variety or Carnelian. This is a beautiful piece with lots of sparkle and texture! Chalcedony is a form of Quartz in microcrystalline form.
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Apophyllite is not a zeolite. Apophyllite is divided into three distinct species, fluorapophyllite, hydroxyapophyllite and natroapophyllite, depending on their chemical composition. It holds the high water content that infuse the capability to conduct electricity.
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