Apophyllite in Matrix - IA5From Jalgaon India, these translucent potassium calcium silicate crystals in the zeolite group come in a variety of colors from clear, pink, blue and green. The clear crystals are known as Hydroxyapophyllite, these particular crystals have a purple brown tint and grow in prismatic shapes on a matrix bed. The image depicts the exact crystal rock you will receive. Length: 3. 6 in Width: 3. 25 in Height: 2. 1 in Weight: 10. 5 oz