Description

Astrophyllite forms in alkaline igneous rocks

Weight: 733 grams

where hot gases rich in sulfur compounds escape from deep within the Earth

sunny yellow

Septerian Agate fossils Astrophyllite forms in alkaline igneousSize: 15 x 14 x 19 Cm Weight: 3. 701 Kg Location: Madagascar Product Description: The Septarian Agate from Madagascar is a unique and fascinating natural mineral formation composed of agate, a type of chalcedony, a cryptocrystalline form of silica. This formation features a striking pattern of cracks and cavities, often filled with minerals such as calcite, aragonite, or pyrite, creating a beautiful, one of a kind design. Geological Information

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Septerian Agate fossils Astrophyllite forms in alkaline igneous

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