Stay-at-Home Day Twenty-Three, Friday 17 April 2020: Stone Twenty-Three

The same close-up with more “saturation”.

Stone Twenty-One up-close.

Stone Twenty close-up.

Stone Nineteen.

Stone Eighteen.

Stone Twenty-Three comes from Birdlings Flat in Canterbury and is probably volcanic in origin (could be rhyolite). There are small crystals of different colours within a light brown matrix. Some of the white crystals appear to be quartz. Light coloured  igneous rocks like this one are usually silica rich.  

Stone Twenty-Three.

Stone Twenty-Three.

Other side of Stone Twenty-Three.

Stone Twenty-Three.

Stones like this usually don’t tumble successfully as some of the small fragments within them tend to come loose. However, they are colourful stones with interesting inclusions and I am always hopeful of a good outcome.

Stone Twenty-Three.

Stone Twenty-Three.

Stone Twenty-Three.

Stone Twenty-Three.

Stone Twenty-Three.

Stone Twenty-Three.

Stone Twenty-Three.

The next Post in this Series is Stay-at-Home Day Twenty-Four, Saturday 18 April 2020: Stone Twenty-Four. The first Post is Stay-at-Home Day One, Thursday 26 March 2020: Stone One. 

Author: tumblestoneblog

Retired Academic, male, living in the New Zealand countryside near Whanganui with his wife as well as Jasper the dog, Fluffy the cat, Dancer and Penny, the horses, and a shed half-full of stones. Email john.tumblestone@gmail.com. View all posts by tumblestoneblog