This gem hasn't been tumbled smooth, it's still rough in its natural state. White quartz, this is mostly matte in color, with flecks of shiny crystal that shimmer when they catch the sunlight.
It's about the width of a finger.
Stone has been secured to a silver tone adjustable ring back.
Between 1.5 & 2cm wide/long
Quartz is the most common mineral you can find on the surface of the earth. Quartz belongs to the trigonal crystal system. Pure quartz, traditionally called rock crystal (sometimes called clear quartz), is colorless and transparent or translucent. Common colored varieties include citrine, rose quartz, amethyst, smoky quartz and milky quartz. The Irish word for quartz is grian cloch, which means 'stone of the sun'. Historically crystal has been used to counter black magic, perform diagnostic healing and crystal spheres have been used to predict the future at least since the middle ages. Buddhists monks use this stone to achieve enlightenment.
If you'd like something similar, take a look at the rest.