description Apophyllite Overview
Apophyllite is a name used for a group of hydrated phyllosilicate minerals rather than for a single uniform mineral species. Members of the group commonly form transparent or translucent colorless, white, green, or pale-colored crystals, often with tetragonal symmetry and prominent basal cleavage. Apophyllite occurs as a secondary mineral in cavities and vesicles of volcanic rocks, especially basalt, and well-known collector specimens come from basalt districts near Pune in Maharashtra, India.
help Apophyllite FAQ
Is apophyllite one mineral or a mineral group?
Apophyllite is a name for a group of hydrated phyllosilicate minerals, not one perfectly uniform species. Group members commonly form transparent or translucent crystals with tetragonal symmetry.
What colors do apophyllite crystals come in?
Common colors include colorless, white, green, and other pale shades. Transparent crystals are especially valued for their bright glassy appearance.
What crystal shape is apophyllite known for?
Apophyllite commonly forms well-developed crystals with tetragonal symmetry. Flat-faced or pyramid-like crystal forms are often associated with specimens sold under the apophyllite name.
Is apophyllite a good mineral for collectors?
Yes, collectors often seek apophyllite for its clear crystals, pale colors, and sharp crystal faces. Its appeal comes from visual quality and crystal form rather than from use as a gemstone for everyday jewelry.
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