Fitzroy's Storm Glass Necklace

The storm glass was popularised by Admiral Robert Fitzroy after his historic voyage on the HMS Beagle. How the Storm Glass works is still a mystery, but it is believed that electromagnetic changes in weather patterns activate the crystals inside (sealed glass chamber fill with crystals when air pressure decreases). This is a gorgeous necklace is the perfect for mums, grandmas, or anyone who loves meteorology. It's a totally unique mix of science, art, and weather prediction that will fascinate everyone! Wear it as a pendant, or hang it as part of your decor. Silver chain measures: 30cm drop / 60cm in total (with 8cm extender if you would like it longer). Glass barrel measures: 3cm in diameter x 1cm deep. Metal is white gold plated, nickel and lead free. How to read: A: Clear Liquid Bright and clear weather B: Cloudy Liquid Sometimes with small stars and crystals at the top. Cloudy weather and often predicts thunderstorms and rain. C: Small Stars in Liquid Humid or foggy weather D: Large Flaky Crystals Cloudy skies, snow in winter. E: Threads of Crystals At The Top Winy Weather F: Crystals At The Bottom, Frost may be coming. Age: 12+ (this is not a toy it is made from glass) Please note accuracy of weather detection may not be 100% when worn as body heat can compromise the crystals effectiveness.