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Glow-In-The-Dark Marble Stones // 3-8mm // Green

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Product Description

Perfect for indoor and outdoor projects, Core Glow Marble Stones add an enchanting allure to driveways and pathways, and can also be added to gravel aggregates and cement mixes. Utilizing a cold-manufacturing process, the result is a vibrant, magical effect wherever you use them.

Product Details
  • ColorsGreen
  • Materials
    Granite
  • Measurements
    6"L x 8"W x 2"H

— Scattered Coverage: 1lb/16 Sq Ft (Galaxy Effect)
— Full Coverage: 1lb/0.5 Sq Ft
— Glows At 520nm
— 1lb Of 3-8mm Marble Stones

FAQ
How long will they glow as in years/months?

With only 10-20 minutes of exposure to daylight or lamplight,
the CORE Glow™ Stone can maintain its glow in the dark qualities for
about 10-12 hours. As for the life span? The 1/2 life of Strontium Aluminate is 18-20 years .

Could these stones be "scattered" in a flower bed covered in black smooth stones? Would you see the light they emit when it is dark? Or must they be mixed with cement mixes?

The Marble Stones do NOT need to be mixed into concrete. Placing them in flower pots is ideal. They will emit plenty of light for 10-12 hrs at night.

How long does the glow last?

They will emit light for approximately 10-12 hrs.

Do they “recharge” during the day? Or only glow for 10-12 hours and then die, and they’re done?

Any exposure to light will excite the Core Glow compound, giving it a small charge, causing it to glow. The trick is to 'saturate' the Core Glow with as much light as it can take to ensure the long afterglow. This takes half an hour to an hour (to ensure a full charge). UV lights work great for a quick burst of super charged glow but this will not result in a full charge. Low light and shaded areas with ambient light will not result in a bright immediate glow but will charge the stones enough for a long afterglow.

Can you use it in a fish tank and not hurt the fish?

No. Do NOT use in a fish tank. The marble will off-gas for a few days and has the potential to contaminate the water in the tank.

Shipping Information
  • Shipping Availability
    — USA
  • Shipping Policy
    Standard Ground Shipping
  • Ships In
    2-3 weeks
  • Return Policy
    Final sale, not eligible for return