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Natural opalite (as opposed to the man-made opalite) shares the same basic chemical properties as opal. It is made of tiny spheres of silicon dioxide, which stack onto each other in a pyramid grid shape. This grid is what allows the cat's-eye effect to be displayed when the stone is cut into a ball.
The term "synthetic" implies that a stone has been created to be chemically and structurally indistinguishable from a genuine one, and genuine opal contains no resins or polymers. The finest modern lab-created opals do not exhibit the lizard skin or columnar patterning of earlier lab-created varieties, and their patterns are non-directional.
Hyalite has a hardness of 5.5–6 on the Mohs scale and a specific gravity of 1.9–2.1. Lacking a plane of cleavage, it has a conchoidal fracture.The transparent or translucent mineraloid has a globular structure, a vitreous luster, and a white streak.
Opalite has been used to describe natural stones before there were widespread synthetics. It has been used to describe material that has simalar characteristics to opal without calling it opal directly. Much the same way the term chalcedony might be used (or misused!) I would not be against this being merged into the opal article, unless there ...
A passion for jewelry can become an expensive habit, especially if you favor investment pieces. But if necklaces, rings and earrings are your go-to accessories, there are ways to keep your budget ...
Ammolite is an opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of North America.It is commonly unearthed by natural erosion or through the process of various mining practices, within the perimeter of an ancient sea bed called the Western Interior Seaway. [2]
An archaeologist believes the tiny humanoid species Homo floresiensis may still exist in Indonesia. Here's how they could have survived in secluded areas.
About the Free People Nightingale Cardi. Similar to a lot of Free People clothing, this oversized cardigan has a very casual appearance with an emphasis on comfort.
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