Chrome Alum Crystal Gemmy Specimen

£44.99

Chrome Alum specimen 117g 56:56:44mm. Gemmy and rare specimen, I’ve only found one other seller selling 1 piece on selling platforms. Chrome Alum is and it is lab grown (since the crystals are octahedral). Alum is water soluble, so it's grown by slowly evaporating or cooling a saturated solution of alum in water. It’s a beautiful example of what man can create based on the forces in nature.