Curious Minds Did You Know? The heat of lightning striking the beach sand can melt the sand to form a glassy rock called “fulgurite.”
Quartz is a form of silica – the most common mineral found in the earth’s crust. As such Quartz and Quartz crystals can be found in large quantities all over the world. Regardless of this abundance, large and very clear Quartz crystals are highly prized by collectors. Because of its beauty, it is used for jewellery and ornaments.
Quartz also has piezoelectric properties that allow it to conduct electricity when placed under mechanical stress, hence it is used in the making of watches, radios and other electrical equipment.
