Large 6.4 lb Fluorescent Norbergite and Diopside in Franklin marble with Galena. Shortwave (sw 254nm), Midwave UV. Sterling Hill, Nj
$120.00 $160.00
This large specimen contains some norbergite and diopside in Franklin marble.
*You will need an actual filtered Shortwave (SW 254nm) UV light in order to see the fluorescence shown in the pictures. A common blacklight or longwave UV light will not work. There is also some unique purple fluorescence under a Midwave (MW 310nm) UV light.*
Weight: 6.488 lb - 2943 g
Size: 7" x 4.5" x 4"
Origin: Sterling Hill mine in Ogdensburg, NJ.
This specimen was photographed using a 36 watt shortwave ultraviolet lamp. The pictures have not been retouched.
-Shortwave lamps have a range of 200-280 nm and are also called UV-C. (254 nm are recommended)
-Midwave lights have a spectrum of 280-315 nm and are also called UV-B (310-314 nm are recommended)
-Longwave lights have a spectrum of 315-400 nm and are also called UV-A. (365 are recommended)
Please feel free to contact us if you have any questions about fluorescence or fluorescent lights.
*Please keep in mind that exposure to UV light is dangerous. We recommend the use of protective goggles and gloves (or wearing sunscreen in the hands) when handling minerals under UV light*
Shipping from United States
Processing time
1-6 business days
Estimated shipping times
- North America : 3 - 5 business days
I'll do my best to meet these shipping estimates, but can't guarantee them. Actual delivery time will depend on the shipping method you choose.
Customs and import taxes
Buyers are responsible for any customs and import taxes that may apply. I'm not responsible for delays due to customs.
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Returns & Exchanges
I gladly accept returns
Just contact me within: 7 days of delivery
Ship items back to me within: 14 days of delivery
I don't accept exchanges or cancellations
But please contact me if you have any problems with your order.
The following items can't be returned or exchanged
Because of the nature of these items, unless they arrive damaged or defective, I can't accept returns for:
- Custom or personalized orders
- Perishable products (like food or flowers)
- Digital downloads
- Intimate items (for health/hygiene reasons)
- Items on sale
Conditions of return
Buyers are responsible for return shipping costs. If the item is not returned in its original condition, the buyer is responsible for any loss in value.