Batu Bacan - Chrysocolla calcedony (Gem silicon dioxide)

Batu Bacan - Chrysocolla calcedony (Gem silicon dioxide) - The rarest and costliest material within the quartz family could be a form of chalecedony legendary within the trade as "gem silica".

The vivid aqua material referred to as gem silicon dioxide is sort of rare, and prime quality specimens ar sought after by collectors and jewellery designers. it's conjointly spoken by the names chrysocolla calcedony and gem silicon dioxide chrysocolla.

The attraction of this crystal is its exceptional color. the extraordinary color is thanks to the presence of copper salts that penetrate the space lattice of colorless chalecedony. although there ar alternative copper-bearing gems which will show an analogous color saturation, like turquoise and chrysocolla, these ar abundant softer stones and don't seem to be arduous enough for rings. The term "gem" in "gem silica" indicates that this material is gem quality, and indeed it's a hardness of seven on the Mohs scale and is appropriate for every kind of bijou, as well as rings.

Despite the names chrysocolla calcedony and gem silicon dioxide chrysocolla,gem silicon dioxide isn't a kind of chrysocolla. Its solely reference to chrysocolla is that each minerals ar coloured by identical copper salts. that the names will be confusing. indeed gem silicon dioxide could be a kind of calcedony, the microscrystalline kind of quartz. alternative kinds of calcedony embody transparent gem, carnelian, onyx, calcedony and heliotrope.

Gem silicon dioxide is found in an exceedingly simply a number of locations round the world, as well as the us (Arizona and New Mexico), Mexico, Peru, the Philippines and Taiwan. Arizona, a well known copper-mining region, is usually considered yielding the very best quality, with material from the Miami Inspiration mine thought of to be the among the absolute best.

Though prime quality calcedony varieties like calcedony and transparent gem sell for $5 to $10 a carat, costs permanently quality gem silicon dioxide will simply reach $50 to $100+ a carat. A prime grade specimen would be distinguished by smart uncloudedness, consistent and powerful color saturation, and also the absence of inclusions.

The demand for gem silicon dioxide is driven by collectors. Asian consumers are attracted by gem silica's similarity to some styles of jade. there's little or no new gem silicon dioxide within the market, most of the rough stone was well-mined years agone.