bb: Multicolor Fluorescent Tremolite & Talc from Upstate New York

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:
Tremolite, Talc
Locality:
Fowler, St. Lawrence Co., New York
Size:
Cabinet - 12.5 x 5.0 x 1.0 cm
Weight:
84.8 g
Number:
2413
Details:
Here's a classy fluorescent from a classic upstate New York locality. White, silky lustered tremolite is intergrown with thin layers of talc. The tremolite fluoresces intense orange to orange-red under long and shortwave UV; varying content of manganese causes different shades of fluorescent color. The red-fluorescing stuff used to be called tirodite, but it has gone through some name changes and reclassification. The talc fluoresces yellowish on fresh surfaces and cool blue-white on weathered surfaces. From St. Lawrence County, along the river near the Thousand Islands area in upstate New York. Lots of great mineral collecting sites there!
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:
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.