The Misrepresented Zircon Zircon, chemically known as ZrSiO4, is the oldest mineral of the earth originating from all three different rock types: igneous, metamorphic and sedimentary. Zircons also have an immense variety of facts such as: being in the tetragonal crystal system, being doubly refractive and having a high birefringence. Despite these facts, the most […]
A Valuable Insight As children we are all told that we should “learn something new every day”. Keep this in mind and read on as we provide you a lesson and an insight into sapphires.
An Introduction Spinel has a lower hardness than both sapphire and ruby on the Mohs’ scale of hardness. Its uniqueness derives from its presentation in many colours, sharply pointed crystal shape, and natural sparkle. These characteristics make it similar to diamonds, due to both being in the cubic crystal system. They also are a major […]