bb: Walstromite - RARE Pink-Orange Fluorescent from California!

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 weeks longer than usual. Please keep this in mind while bidding.
Species:
Walstromite, possible Bazirite & other barium silicates
Locality:
Snow Cap Mine, Rush Creek, Rush Creek deposit, Big Creek-Rush Creek Mining District, Fresno Co., California
Size:
Thumbnail -
3.6 x 2.1 x 1.6 cm
Weight:
15.2 g (76 ct)
Number:
2132
Details:
This big thumbnail specimen (it barely fits in the box) is rich in walstromite, with
bright pink-orange fluorescence
under shortwave UV; it glows paler pink under longwave and phosphoresces dim yellow-orange. It's accompanied by other
fluorescing species in
bright blue-white and dim yellow, which may be bazirite, fresnoite or some other unusual barium silicates
. This piece was collected by and purchased from the discoverer, Bob Walstrom, at the New Mexico Mineral Symposium in Socorro, NM in 2010
. An excellent small display or reference specimen!
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.
° ° ° ° °  PLEASE READ BEFORE BIDDING  ° ° ° ° °
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* Payment is due within 7 days of invoice unless other arrangements are made. PayPal is preferred.
* Send a message for details, especially for shipments outside the USA.
INTERNATIONAL CUSTOMERS:
* US Post Office policy can make economical shipping a challenge. Price increments for packages are as follows:
First class up to 225 g, then 225-900 g, then 900-1350 g (Canada only).
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.