Toy Marbles

Marbles from Dollar Tree Store test positive for Lead, Arsenic, Antimony and Cadmium (using XRF technology)

Marbles from Dollar Tree Store test positive for Lead, Arsenic, Antimony and Cadmium (using XRF technology)

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Introduction: Tamara Rubin is an independent advocate for consumer goods safety, and she is also a mother of Lead-poisoned children. She began testing consumer goods for toxicants in 2009 and was the parent-advocate responsible for finding Lead in the popular fidget spinner toys in 2017. She uses high-precision XRF testing (a scientific method used by the…

Green shooter marble (Marble King brand, previously sold & marketed as Lead-free): 1,375 ppm Lead (+ Cadmium too).

Green shooter marble (Marble King brand, previously sold & marketed as Lead-free): 1,375 ppm Lead (+ Cadmium too).

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Above photos shows a small Marble King brand green-swirl “cat’s eye” marble (randomly positive for 175 ppm Lead) next to a large Marble King brand green-swirl “cat’s eye” shooter (randomly positive for 1375 ppm Lead). Please note the level of Lead is not dependent on the size of the marble. – Photos by Avi B….

Avi’s 8th Grade Science Class Experiment: “How does the elemental composition of glass marbles affect their color?”

Avi’s 8th Grade Science Class Experiment: “How does the elemental composition of glass marbles affect their color?”

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Photos by Avi B. Rubin, age 14 (8th grade science, Sellwood Middle School) Below each marble image is the full XRF test result for that particular color (& style) marble. These marbles are all from the manufacturer Marble King. Important points to note: A Niton XL3T XRF instrument was used for this testing. All testing…