bb: Hyalite Opal - Brilliant Lime Fluorescent from North Carolina

Description

NOTE:
Postal delays caused by the pandemic are affecting
delivery of parcels. In the USA, most delays are minimal. Shipping to other countries is currently taking at least several days to a week or more longer than usual. Please keep this in mind while bidding.
Species:
Opal var. Opal-AN (Hyalite)
Locality
:
Chalk Mountain Mine, Spruce Pine, Michell County, North Carolina
Size:
Miniature - 4.7 x 2.7 x 1.2 cm
Weight:
48 ct (9.6 g)
Number:
2459
Details:
From a classic, long-closed locality in the "little Switzerland" region of North Carolina
, this specimen is kind of cute but unassuming in daylight, but really kicks out the jams in
an intense chartreuse green
under both long and shortwave UV. Crusts of this hyalite over a base layer of white alaskite pegmatite were frequently found at this mine when it was working, but as with seemingly all good things, collecting access was stopped years ago and now the site is inactive. As with all such pieces, this is an aol-collection specimen.
Very cool!
NOTE: TO VIEW FLUORESCENCE, YOU NEED A QUALITY ULTRAVIOLET LIGHT WITH A UV FILTER!
The better the UV source, the better fluorescent minerals look. Cheap "UV" flashlights without filters will not provide satisfactory results!
The photos here are taken using Convoy S2 and C8 (longwave-365)
and UV Systems SuperBright II (shortwave-254) lamps, metered
and exposed to show fluorescent response to best advantage.
Key factors include lamp wattage, UV spectrum and filtration, as well as distance from lamp to specimen. For best results with any UV source, observe against a dark, non-fluorescent, non-reflective background, in complete darkness with eyes adapted. For extended viewing, use protective UV-absorbing goggles.
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INTERNATIONAL CUSTOMERS:
* US Post Office policy can make economical shipping a challenge. Price increments for packages are as follows:
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Higher weights require Priority Mail.
I always try to make shipping as cost-effective as possible. Please send a message so we can work things out.
* Please note that import duties, taxes or charges are not included in the item price or shipping fees and are the
buyer’s
responsibility.
While most countries do not charge duty on mineral specimens, you should check in
your own co
untry to be sure before bidding.