Semi Precious Stones
The name "Semi-Precious stones" is used for all the varieties of gemstones that are not categorized as "precious". Any gemstone suitable for being used in personal adornment would be included. Semi precious stones include gemstone fashioned from agate, amber, amethyst, aquamarine, jasper, lapis lazuli, moonstone, peridot, malachite, tiger eye, tanzanite, topaz, turquoise, tourmaline, blue opal, fossilcorl, rainbow jasper, doll mansion, larimar, blood stone, bumble bee, white agate, Botswana, dandrite opal, fire opal, unakite, orgonite .
This separation between precious and semi precious has no real scientific backing. For example, emerald is a variety of beryl. so are aquamarine, emerald is precious while aquamarine is semi precious, when this categorization came about, it was mainly due to the value and the rarity differences between the four precious gemstone and the rest today some semi precious gemstones can be worth much more than precious stones. As an example many natural pearls had low quality and precious stones like ruby, sapphire, emerald, diamond are produced in higher quality.