Yellow Opal rough chunks from Napa Co., rare fluorescent stone (rc2520)

SKU: rc2520
Availability: 1 in stock

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Napa Co. Calif. Fluorescent Yellow Opal

Origin:Manhattan Gold Mine, Napa Co. Calif.

Colors: Translucent Yellow

Characteristics: Napa county Yellow Opal, also known as Lemon Opal 

Uncovered by a bulldozer at the Manhattan gold mine in Napa County, Calif. many years ago. Local collectors were called in and by the next day it was all taken. Now extremely rare and seldom seen for sale.  This was the same mine Myrichite was found at.

The Manhattan mine, also known as the McLaughlin mine, is located on a hot spring type deposit that produced lead, gold, silver and mercury, beginning in the 1860s.   This site is no longer available for collecting.

This material fluoresces to a brighter yellow, these small rough chunks and half way completed cabs are my last of this material I have.  I was planning to make   cabs with this material but I need to retire so all my rough is now for sale.

Some of this material will make cabochons and the smaller ones would make great looking rings, the rest would look great in your display, especially if you don't have any, see my pictures showing the opal under a short wave light.  The black and yellow cab I'm not sure of, it may be the original material from San Bernardino County.

Approx size: I use a background in some of my pictures that are 10 mm squares to help with image sizing. Weight: 407.5 ct, my price may seem high but this material is extremely light so you're getting a lot for your money.


Combining items with 2 or more listings. I will ship them with no extra charges, just additional postage if needed.  When the purchase total is over $20 you will get free shipping even if the individual items are less than $20. 

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 I use a full spectrum 45 w light bulb - photography photo CFL 5500K.  It's a daylight balanced pure white light. 

An 18 mm dime or 24mm quarter and 10 mm background squares in some pictures should help you with image sizing.

EBAY Customers: I create my items on Shopify and link them to eBay with a Pay Now option, that's why you can't request an invoice and I can't create an invoice for combining items.

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