Fluorescent Chert, Three Size Options - Free US Shipping


These chert specimens were collected from a small area in Central Texas. When viewed under short wave ultraviolet lighting, they glow in vibrant shades of yellow and green.

There are two listing photos showing the exact pieces that are included with each of the three order options. One photograph was taken of each set in natural light. There is also an accompanying photo showing their appearance when illuminated by an inexpensive short wave UV flashlight (18 Watts/395 nm wavelength).

Flakes Set: Ten pieces weighing a total of 5 ounces. The smallest measures 1 x 1-1/2 inches and the largest is 2 x 1-3/4 inches. all are less than 3/4 of an inch thick and some are less than 1/4 inch thick.

Medium Pieces Set: Six specimens having a combined weight of 1 pound, 2 ounces. Sizes are between 1-1/4 x 1-1/2 x 1-3/4 inches and 1-1/4 x 2 x 2-1/4 inches.

Large Pieces Set: Six pieces that weigh a combined 3 pounds, 11 ounces. They range in size from 1-3/4 x 2 x 2-1/4 inches to 2-1/4 x 2-3/4 x 3-3/4 inches.

All measurements were rounded slightly.

The colors shown by these stones will vary slightly depending on the viewing angle as well as the intensity and the wavelength of the UV light source being used. This material does not "glow in the dark".

Shipping to any address within the United States is included in the listing prices.

Shipping from United States

Processing time

1 business day

Estimated shipping times

  • North America : 1 - 2 business days
  • Europe : 1 - 2 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.

Payment Options

Secure options
  • Accepts Etsy gift cards

Returns & Exchanges

I gladly accept returns and exchanges

Just contact me within: 14 days of delivery

Ship items back to me within: 30 days of delivery

I don't accept 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)

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.

Frequently Asked Questions

Why don't you ship live plants to locations within the state of California?

Unfortunately, we lack the certifications required by the California Department Of Agriculture that would allow us to ship live plants to those residing in the state of California.

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