certificate jewelry, Salt Stone

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certificate jewelry, Emerald

Emerald

emerald is a gemstone and a type of the mineral beryl colored green by trace amounts of chromium and sometimes vanadium. emerald in antiquity were mined in Egypt at locations on Mount Smaragdus since 1500 BCE.

certificate jewelry, Opal

Opal

opal is a hydrated amorphous form of silica. because of its amorphous character, it is classed as a mineraloid, unlike crystalline forms of silica, which are classify as minerals.

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.