A perfectly formed rough quartz crystal from our exciting collection of rocks and minerals. Although it's difficult to say for certain because this crystal is translucent as opposed to transparent, I'm fairly certain there's a second well formed crystal inside. I think there may even be a smaller third one as well but you'll need to look carefully to see it.
The many different colours in which quartz can be found are mostly caused by impurities which become trapped within the crystal during its early formation. In their purest form quartz crystals are colourless and translucent to transparent.
Quartz is the most common component of sand and is found in almost every rock type. Due to its relative hardness it's widely used as an abrasive. When squeezed a quartz crystal generates a tiny electrical charge and also has the ability to vibrate at precise intervals which is why it's used in devices that keep the time, in radio transmitters and of course computers.
Quartz crystals are also widely used in alternative therapies for their healing properties. Known as a "master healer" it's considered to be one of the most powerful of all healing crystals.