Combined Test Specimen Gold/Carbon

Marsoni

M251S

$308.29

Get it in 3 business days with 1 day shipping. Friday, May 29

Combined Test Specimen Gold/CarbonA holey carbon film is shadowed with gold and graphitized carbon particles are deposited. These particles viewed over the holes may be used for assessment of factors limiting the microscope performance. The evaporated gold forms small polycrystalline islands and within these islands lattice fringes can be resolved. This specimen is also used for contamination measurement rates in the electron microscope by noting the deposition rate of carbon within

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This was one of the first toys I got my dog and he LOVED IT. I sadly had to throw it away because he peed on it but this is something I will definitely repurchase. Perfect for tug of war and playing fetch. Definitely not indestructible as he did rip it a little but it took him a LONG time to do that

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Reviewed in the United States on May 4, 2026

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Amazon Customer

Battle Creek, US

★★★★★ 5

Remains a favorite

Color: Orange

This toy was perfect for my pup who's a big biter and most toys will last about 2-3 days. The material on this toy is very durable and remains the favorite with the crinkling sound.

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Reviewed in the United States on May 3, 2026

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Debbie

Pawtucket, US

★★★★★ 5

My dog loves it

Color: Orange

cute toy....very durable....good value

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Reviewed in the United States on June 3, 2026

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DENISE TILKO

Battle Creek, US

★★★★★ 5

Pup loved it!

Color: Blue

Dog thought it was great but it tore up very easily.

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Reviewed in the United States on April 3, 2026

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Belleville, US

★★★★★ 4

Not for tough chewers

Color: Blue

Cute toy, good concept but definitely not for super chewer. Got it at such a price that I let him destroy it because he was having so much fun. You only have one birthday a year after all.

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Reviewed in the United States on May 20, 2026