The lovely colours of olive green to brick red are displayed in fine detail by the bright pleochroism of andalusite. Beautiful jewellery is frequently created using this lovely combination of the two minerals kyanite and silimanite. Meaning of Andalusite The hardness of andalusite, a highly pleochroic gemstone, ranges from 7 to 7.5. Jewelry aficionados are frequently drawn to it by its intriguing hues and robustness. Although the mineral andalusite is common…