COMMON OPAL POLISHED SLABS
Opal is technically a mineraloid, not a mineral due to its amorphous nature (lack of a crystalline structure) There are two kinds of opal: precious and common, and both make excellent gemstones in their own way. Common opals do not exhibit the play of color that a precious opal does, and is what one thinks of when they hear “opal”. While not as flashy as precious opals, common opals exhibit some phenomenal visual qualities including a turbid opalescence. Common opals sport a milky, haziness that appears to be actively swirling within the stone, giving them a mystical quality. While precious opals are more popular, common opals are incredibly collectable as well. These stones can appear in almost any color, though warm colors (red, orange and yellow) and green, tend to exhibit more “movement” in their opalescence.
5 Items ($55 to $105)