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certificate jewelry, Hematite

Hematite

Hematite is one of the most abundant minerals found on the earth's surface and in shallow crust. Hematite is a type of iron oxide with the chemical composition Fe2O3. This rock is a common rock-forming mineral that is often found in sedimentary, metamorphic and igneous rocks.

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.

certificate jewelry, Topaz

Topaz

topaz is a silicate mineral of aluminum and fluorine. topaz crystallizes in the orthorhombic system, and the crystals are often prismatic terminated by pyramidal and other faces.