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£ 2884

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

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Description

🌈 Unlock the spectrum of possibilities with every angle!

SAFE ECO FRIENDLY MATERIAL - Lead-free glass ensures safety for kids and eco-conscious users alike.
READY TO GIFT WITH SECURE PACKAGING - Arrives fully protected, making it a perfect present for curious minds.
PERFECT FOR STEM EDUCATION PHOTOGRAPHY - Ideal tool for teaching light physics or capturing stunning photo effects.
GENEROUS 6 INCH LENGTH FOR STEADY CONTROL - Comfortably hold and manipulate the prism with its stable 1.38-inch side length.
PRECISION OPTICS FOR CRYSTAL CLEAR SPECTRUMS - Experience vivid light refraction with premium K9 optical glass, not plastic.

The Amlong Crystal 6 inch Optical Glass Triangular Prism is a lead-free K9 glass prism designed for educational and photographic use. Measuring 6 inches in length with a 1.38-inch side for stable handling, it delivers clear light spectrum demonstrations and creative photo effects. Lightweight and safely packaged, it’s a top-rated tool for science education and visual experimentation.

Specifications

ASIN	B00FHFV9AI
Age Range Description	Kid
Best Sellers Rank	#75,808 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #624 in Science Education Supplies
Brand Name	Amlong Crystal
Color	Silver
Customer Reviews	4.6 out of 5 stars 3,303 Reviews
Educational Objective	Demonstration of light wave principles
Indoor Outdoor Usage	Indoor
Item Weight	9.92 ounces
Manufacturer	Amlong Crystal
Manufacturer Part Number	AMPR10060-1
Manufacturer recommended age	0 - 10 years
Material Type	optical glass
Model Number	AMPR10060-1
Number of Packs	1
Number of Players	1
Operation Mode	Manual
Power Source	Manual
Size	Small
Supported Battery Types	No batteries required
Theme	science education
UPC	855271005588
Unit Count	1 Count

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E£ 2884

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to EGYPT.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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Amlong Crystal 6 inch Optical Glass Triangular Prism for Teaching Light Spectrum Physics and Photo Photography Prism, 150mm

Description

Specifications

Common Questions