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Chlorophane

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LMB170628

Chlorophane

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Description Tabs

Description
Locality: 
Buckwheat Mine, Franklin, Sussex County, New Jersey, United States of America
Size Range: 
Small cabinet (7-10 cm)
Size: 
4.5 × 7 × 4.5 cm
Description

Reddish brown “chlorophane” in a very dense, fine grained, matrix (probably franklinite in part). This sort of fluorite fluoresces both SW and LW, is phosphorescent and triboluminescent and even glows when heated. But it has to be kept away from light – especially daylight and prolonged exposure to UV.

Regarding the SW UV response: It is “sort of” green and “sort of” blue. Even my eyes can’t make up their minds. When it comes to photos, it comes out as mostly blue or mostly green depending on the camera settings. The photo presented is just a very rough approximation of what I think I see. (It was taken using auto color balance and then tweaked a bit with Photoshop. But the specimen was not uniformly illuminated. The “flat” areas are “blow outs” due to overexposure. The true color is ambiguous.)

Why would you want this?? Because, if you are a Franklin UV collector, you need to have one of these.

Weight 12.0 oz. Postage – outrageous, except within the USA - where it is merely annoying.

Mineral Data
What's on the rock

Chlorophane

Variety Of: 

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Hardness: 
4.0
Hardness: 
0.0
LMB minerals

Seller Information

Payment options: offline, paypal_wpp, paypal_wps

Seller's terms and conditions

In addition to the standard terms and conditions, please note the following. Almost all IDs are visual. While in most cases the ID is obvious, there may be cases where it is not. If you are doubtful about a particular ID, please ask for more information. Or do not bid! Similarly, if you are not sure that the specimen meets your criteria, do not bid. I have tdone the best I can with the photos. Nevertheless, if you are not happy with a specimen for any reason, I will refund the bid price – but not the shipping costs (unless the fault is clearly mine) – if the specimen is returned. This policy applies even if analysis of the specimen shows that my ID was incorrect. When in doubt, ask - or don’t bid. Note that most crystals at MSH and Varennes are micros - even if on large specimens. Please pay attention to the stated sizes. Any customs duties, fees etc. are the responsibility of the buyer.

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