Cactus quartz (small) Garden quartz and pyrolusite)

and pyrolusite)

After some sleuthing on Mindat I was intrigued to discover the spherical formation on this specimen is prehnite

and create a pattern of rows of reflecting triangular point faces

Turns out it's hollow like a geode and the holes on the front and back connect

Cactus quartz (small) Garden quartz and pyrolusite)Locale: Boekenhouthoek, South Africa Approx dimensions and weight: specimen A 2. 5 x 1. 5 x 1. 5", 47g B 2. 25 x 1. 5 x 1. 5", 62g C 2 x 1. 25 x 1. 25", 83g D 2 x 1. 25 x 1. 25", 45g E 2. 75 x . 75 x . 5", 33g F 1. 75 x 1. 5 x 1. 25", 38g G 2. 25 x 1. 75 x . 75", 39g H 2 x 1 x 1", 43g I 1. 5 x 1. 5 x 1", 37g J 2 x 1. 75 x 1", 69g K 1. 75 x 1. 5 x 1. 5", 73g L 2 x 1. 75 x 1", 54g Cactus quartz is also known as spirit or pineapple quartz, but as an