Sphene, also known as titanite, is a fascinating gemstone that is prized for its unique optical properties and vibrant colors. It typically exhibits a brilliant luster and can display a range of colors, including green, yellow, brown, and even colorless. One of its most striking features is its high dispersion, which gives it a fiery appearance similar to that of a diamond, often showcasing flashes of rainbow colors.

Sphene has a relatively low hardness on the Mohs scale, usually around 5 to 5.5, which means it can be more prone to scratches compared to harder gemstones. However, it is valued for its beauty and rarity. In terms of metaphysical properties, sphene is believed to enhance mental clarity, stimulate creativity, and promote a sense of well-being. It is also thought to assist in making important decisions and bringing about positive change in one's life.

If you have any specific questions about sphene or want to know more about its properties, feel free to ask!