Tiger Eye Heart Watermelon Tourmaline The result is color centers

The result is color centers that absorb across the amber-to-brown range

aragonite is orthorhombic

easy to give

depending on the concentration of iron and titanium in the crystal

are the most cited examples

Tiger Eye Heart Watermelon Tourmaline The result is color centersA heart cut from a stone that already has its own internal movement. Tiger Eye is quartz that formed by pseudomorphismsilica and iron oxides replacing crocidolite fibers atom by atom while the fiber alignment survived intact. Light striking that alignment focuses into a single travelling band: chatoyancy. The warm golden brown hue is iron oxide woven through the quartz. Mohs hardness 6. 57; durable enough for a carving that will be handled often. Most