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This is a polished specimen featuring pale blue and purple with red and white patterning
and white colors
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47mm x 33mm
Chapter 2: The Mysterious Formation of Geodes in Igneous Rocks
PYR213 Pyrite in Matrix Angelwing Chalcedony This is a polished specimenThis Pyrite cube in Marl Matrix is from Navajn, Spain. These are natural pyrite minerals and are famous all around the world for their incredible formation. Originally discovered in 1965, the mine has been continually worked to this day. The chemical formula for pyrite is FeS2. This features one cube measuring 2. 9 x 2. 9 x 3. 1cm in its original matrix, approximately 8cm long. You will receive the exact mineral specimen pictured. It is important to