I remember as a child, breaking open flint boulders, which had been delivered outside our door to shore up the sea defences (we lived virtually on a beach), to see if I could find any magic crystals inside. I am quite sure looking back, that I probably should not have been doing that – but I was 10 yrs old and in search of secret treasure! I now know that what I was looking for was Druzy.
A druzy is sets of tiny mineral crystals that form on the surface of another stone. The little pyramid-like crystals, glitter and catch the light – making them beautifully sparkly. There are many types of druzy, because there are many types of minerals. Each type of druzy has particular characteristics, such as crystal size, lustre and color. Quartz is one of the most common druzy types because of the prevalence of silica throughout the world.
Druzy is formed when water brings minerals onto a rock’s surface. When the water evaporates, cooling occurs and the minerals left behind form crystals on top of the rock. The colour of druzy depends on the mineral from which it has formed – druzy gemstones can be almost any color of the rainbow, including white, pink, blue, purple, green or black.
Druzy can be found anywhere that water can collect and evaporate on rock. It most commonly appears along river beds and shorelines.
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