with a diameter of 178 m and a depth of approx
It can occur in various colors
colourless
They have a bright luster and a transparent to translucent appearance
Apophyllite and Prehnite Cluster Crystal | 104 grams | Mumbai, India SO24 Apophyllite with a diameter of 178Prehnite can form prismatic, tabular, or pyramidal crystals, but usually occurs in botryoidal, reniform, stalactitic, granular, or compact habits. It is usually green in colour, but may be white, colourless, yellow, or gray. It has a colourless streak. Prehnite is transparent to translucent, with a vitreous to pearly luster. Prehnite forms in cavities in basaltic lavas. Apophyllite is a mineral known for its distinctive crystal formations, often