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certificate jewelry, Magnetic Stone

Magnetic Stone

The mineral magnetite is iron oxide (Fe3O4), which is found in all three igneous, metamorphic and sedimentary rocks. This stone is often extracted from iron ore. Magnetite is also a mineral with the highest amount of iron (72.4%).

certificate jewelry, Sapphire

Sapphire

sapphire is a precious gemstone, a type of the mineral corundum, include of aluminum oxide with trace amounts of elements such as iron, titanium, chromium, vanadium, or magnesium.

certificate jewelry, Gold stone

Gold stone

Goldstone is a glossy man-made colored glass that contains many components, smooth, face and highly reflective. The final product is polished and polished into beads, sculptures or other artifacts suitable for semi-precious stones, and in fact Goldstone is often mistaken or misrepresented as a natural material.