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Description Tabs

Franklin, Sussex County, New Jersey, United States of America
Size Range: 
Cabinet (10-18 cm)
7 × 10 × 6 cm

Bright yellow norbergite with a bright yellow SW UV response. This makes a good fluorescent display, but the colors in the UV photo are approximate. What I see with the naked eye is rarely what I get with my camera, so the UV photo has been Photoshopped to make it look more or less realistic. This gets subjective. In any case, the photo does show that there is quite a bit of norbergite in the specimen. The brightness of the response will depend on source intensity, but it is quite bright even with my old (solarized) 6W lamp. The “side” view shows that the norbergite is disseminated throughout most of the specimen. As a bonus, there are also several small, gemmy, (fluoro)phlogopite xls.

Note: The Franklin (Farber) quarry, is not the same thing as the Franklin mine. The quarry is actually closer to the Sterling Mine - but it is not part of that either. It is a limestone quarry – not in the ore body. However, it is considered to be part of the Franklin Mining District.

Weight 14.6 oz. Shipping weight 17.3 oz. Not cheap to ship. (Will not fit in a small Priority Mail flat rate box for shipping within the USA.)

Mineral Data
What's on the rock


Crystal System: 
6.0 - 6.5
Type Locality: 
Östanmossa mine, Röberg ore field, Norberg, Västmanland, Sweden
LMB minerals

Seller Information

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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.