|
|
•
• • • • |
|
•
• • • • |
|
Fluorescence according to wikipedia
...is the emission of light by a substance that has absorbed light or other
electromagnetic radiation. It is a form of luminescence. In most cases, the
emitted light has a longer wavelength, and therefore lower energy, than the
absorbed radiation. The most striking example of fluorescence occurs when the
absorbed radiation is in the ultraviolet region of the spectrum, and thus
invisible to the human eye, while the emitted light is in the visible region,
which gives the fluorescent substance a distinct color that can be seen only
when exposed to UV light. Fluorescent materials cease to glow nearly immediately
when the radiation source stops, unlike phosphorescent materials, which continue
to emit light for some time after...
Fluorescence also occurs frequently in nature in some minerals and in various biological forms in many branches of the animal kingdom." Source:wikipedia
The minerals were put under the Convoy S2+ Nichia 365nm UV LED -
clicking on the picture shows the specimen in itīs natural color -
and thats their reaction, fluorescencewise
the Manganoan Calcite from the Magma Mine in Arizona turns raspberrylike - instead of greyish white.
|
||||
|
the Adamite from the Ojuela Mine turns striking green • dimensions 15 x 15cm, respectively 3 x 3cm
|
||||
|
the Selenite Rose from Amsdorf, Saxony-Anhalt turns greyish-green and the Calcite with Pyrite from the Sta. Eulalia Mining District turns pink, instead of white • dimensions of the Selenite Rose 8 x 8cm, the Calcite is 7 x 8cm - remark on that: it is part of my collection, therefor not for sale
|
||||
|
particulary beautiful red colour shows the Ruby from Luc Yen, Vietnam, the Calcite from the Sta Eulalia Mining District has some yellow inclusions • dimensions of the Ruby 8 x 9cm - this specimen is part of my collection and thus not for sale - the Calcite is 10 x 8cm
|
||||
|
truly spectactular are the scarlet Fluorite from the Ojuela Mine - the bigger one seems to be sprinkled by measels • dimensions 24 x 14cm, the small one just 3 x 3cm
|
||||
|
almost completely white turns this Fluorite from White Rock Quarry in Ohio, which is brownish and translucent by nature... and fancy blue turns the Fluorite from the Blanchard Mine in New Mexiko • dimensions of the Fluorite from Ohio 5 x 4cm, the one from New Mexiko 10 x 7cm
|
||||
For information on prices and availability please hit the shopping cart symbol and send your message - thank you! |