what is a semi precious stone

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Precious Vs. Semi-Precious Gemstones : Semi-precious v. Precious Stones. The terms “precious and “semi-precious” came into origin in the 19 that large deposits ...

Gemstone - Wikipedia

A gemstone (also called a gem, fine gem, jewel, precious stone, or semi-precious stone) is a piece of mineral crystal which, in cut and polished form, is used to make ...

Semi-Precious Stones - GemSelect

The world of semiprecious stones is incredibly diverse. Some are as rare and valuable as any precious stone. Others are very affordable. In between is a remarkable ...

Tanzanite - Wikipedia

Tanzanite is the blue and violet variety of the mineral zoisite (a calcium aluminium hydroxyl sorosilicate) belonging to the epidote group. The gemstone was ...