Does the crystal/glass contain lead?

I have not actually seen this product, but I do find it confusing that they say it is K9 crystal, but ... when you look up the definition of what K9 crystal IS (Wikipedia), the 9 = 9% lead. So... I am tempted to say that if it is lead free, it should not claim to be K9, but rather just borsilicate glass. That doesn't make it bad, just not K9. Flip this around and ask... for most applications, what is the problem with lead in the crystal for a prism anyways, you're not going to use it to stir coffee...

Has anyone tried to make a rainbow through this with a flashlight?

Most modern flashlights don't actually produce every color of light, in order to make them more energy efficient. The exception is old fashioned, cheap incandescent.

OK I give up, I have tried 2 of these "crystals" and neither one of them would produce a "rainbow" of light, only white light???

Please make sure you are using natural sunlight. Artificial light won't produce the desired effect.

Amlong Crystal 6 Inch Optical Glass Triangular Prism For Teaching

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

المساعدة تتبع الطلب

الحساب عربة التسوق

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

المساعدة تتبع الطلب

الحساب عربة التسوق

E£ 5087

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔮 Transform light into art and science — hold the spectrum in your hands!

PREMIUM OPTICAL GLASS CLARITY - Crafted from high-quality optical glass to deliver sharp, vibrant light splits and kaleidoscopic photo effects.
VIVID 6 INCH SPECTRUM DISPLAY - Unleash the full rainbow with a larger-than-average prism size for stunning light refraction.
ERGONOMIC 1 38 INCH SIDE LENGTH - Designed wider than competitors for a secure, comfortable hold during experiments or photography.
AUTHENTIC BRAND SECURE PACKAGING - Comes in a branded box with full protection, ensuring you receive a genuine, ready-to-use prism.
VERSATILE TEACHING CREATIVE TOOL - Perfect for educators demonstrating light waves or photographers seeking unique, artistic lens flares.

The Amlong Crystal 6-inch Optical Glass Triangular Prism is a premium equilateral prism designed for both educational and creative uses. Its larger 1.38-inch side length offers superior grip, while the optical glass ensures crisp, vivid light spectrum separation. Ideal for teaching physics concepts or enhancing photography with unique refraction effects, this prism comes securely packaged with the authentic Amlong Crystal brand guarantee.

Specifications

ASIN	B00FHFV9AI
Age Range Description	Kid
Best Sellers Rank	#177,617 in Toys ( See Top 100 in Toys ) #40 in Prisms
Brand Name	Amlong Crystal
Color	Silver
Customer Reviews	4.5 4.5 out of 5 stars (3,159)
Educational Objective	Demonstration of light wave principles
Indoor Outdoor Usage	Indoor
Is Assembly Required	No
Item Weight	0.62 Pounds
Manufacturer	Amlong Crystal
Manufacturer Part Number	AMPR10060-1
Manufacturer recommended age	0 - 12 years
Material Type	Optical Glass
Model Number	AMPR10060-1
Number of Players	1
Operation Mode	Manual
Power Source	battery_powered
Size	S
Supported Battery Types	No batteries required
Theme	science education
UPC	855271005588
Unit Count	1 Count

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