Prehnite was originally classified as a zeolite due to the fact that it usually forms in the same areas and under similar conditions as the zeolite. Round faceted prehnite gemstone. Limited fe 3 substitutes for aluminium in the structure.
Prehnite was originally classified as a zeolite due to the fact that it usually forms in the same areas and under similar conditions as the zeolite. Round faceted prehnite gemstone. Limited fe 3 substitutes for aluminium in the structure.