Difference between revisions of "Fluorescent minerals"
| Line 25: | Line 25: | ||
|- | |- | ||
! scope="row"| Barite | ! scope="row"| Barite | ||
| − | | | + | | BaSO4 |
| colorless to white | | colorless to white | ||
| yellowish | | yellowish | ||
|- | |- | ||
! scope="row"| Calcite | ! scope="row"| Calcite | ||
| − | | | + | | CaCO3 |
| colorless to white | | colorless to white | ||
| − | | | + | | red, blue, pink, green, orange |
|- | |- | ||
! scope="row"| Cerrusite | ! scope="row"| Cerrusite | ||
| Line 40: | Line 40: | ||
|- | |- | ||
! scope="row"| Chalcedony | ! scope="row"| Chalcedony | ||
| − | | | + | | SiO2 |
| colorless to white | | colorless to white | ||
| yellowish | | yellowish | ||
|- | |- | ||
! scope="row"| Corundum | ! scope="row"| Corundum | ||
| − | | | + | | AlO3 |
| colorless to white | | colorless to white | ||
| yellowish | | yellowish | ||
|- | |- | ||
! scope="row"| Dolomite | ! scope="row"| Dolomite | ||
| − | | | + | | CaCO3 |
| colorless to white | | colorless to white | ||
| yellowish | | yellowish | ||
| Line 57: | Line 57: | ||
| PbCO3 | | PbCO3 | ||
| colorless to white | | colorless to white | ||
| − | | | + | | blue |
|- | |- | ||
! scope="row"| Quartz | ! scope="row"| Quartz | ||
Revision as of 12:46, 1 May 2018
Description
Minerals that have the unique physical property to absorb light and one wavelength and instantaneously release it at a different wavelength, resulting in a temporary color change to the eye of the human observer. Only about 15% of minerals are able to fluoresce. The fluorescence is usually due to a cation activator, such as: tungsten, molybdenum, lead, boron, titanium, manganese, uranium, and chromium, but some rare earth elements are also able to contribute to the phenomenon. Most minerals fluoresce a single color, but some may have multiple colors; for example calcite can fluoresce red, blue, white, pink, green and orange.
Other Properties
| Mineral | Composition | Visible color | Fluorescent color |
|---|---|---|---|
| Agate | PbCO3 | colorless to white | yellowish |
| Apatite | PbCO3 | colorless to white | yellowish |
| Barite | BaSO4 | colorless to white | yellowish |
| Calcite | CaCO3 | colorless to white | red, blue, pink, green, orange |
| Cerrusite | PbCO3 | colorless to white | yellowish |
| Chalcedony | SiO2 | colorless to white | yellowish |
| Corundum | AlO3 | colorless to white | yellowish |
| Dolomite | CaCO3 | colorless to white | yellowish |
| Fluorite | PbCO3 | colorless to white | blue |
| Quartz | SiO23 | colorless to white | red |
| Rhyolite | PbCO3 | colorless to white | yellowish |
| Scapolite | PbCO3 | colorless to white | yellowish |
| Willemite | PbCO3 | colorless to white | green |
Additional Information
J. Ogden, Jewelry of the Ancient World, Rizzoli International Publications, New York, 1982.
Comparisons
Properties of Common Abrasives
Properties of Common Gemstones
Natural and Simulated Diamonds