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Description
Silicon Element CubeSilicon's atomic number is 14 and its symbol is Si. Silicon is an essential compound in the semiconductor industry. This sample happens to be 99. 995% pure silicon. The squares you see in the computer chip are doping material only a few atoms thick making this one of the purest samples you can easily find. Although silicon does not have a major role in animals, silicon structures are excreted by various sea sponges and microorganisms. It is also
Silicon's atomic number is 14 and its symbol is Si. Silicon is an essential compound in the semiconductor industry. This sample happens to be 99.995% pure silicon. The squares you see in the computer chip are doping material only a few atoms thick making this one of the purest samples you can easily find.
Although silicon does not have a major role in animals, silicon structures are excreted by various sea sponges and microorganisms. It is also contained in various plant tissues. Silicon oxide or “silica” has been discovered in Egyptian-made glass dating back to 1500 BC. Silica is one of the best-researched compounds second only to water. Twelve different crystal forms of silica exist including jasper, onyx, flint, opal, and quartz. Silicon is the second most abundant element in the earth's crust behind oxygen. Silicon makes up a total of approximately 27% of the earth's crust by weight.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 4
Carharrt Quality
Color: Brown (Passcase)
I purchased this bifold wallet approximately about a month ago for my husband. It seems to have the trusted durable Carharrt quality, but it hasn’t been long enough to review its durability. It’s very nice looking. I gave it a four star due to he did find it stiff & tight fitting at first, it didn’t fit all that he had in his old wallet. I’m sure with time as with any leather it will soften.
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Reviewed in the United States on April 27, 2026
★★★★★ 5
Happy guy!
Color: Black (Passcase)
Good quality materials, brand, and layout.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
★★★★★ 5
Best wallet
Color: Brown (Passcase)
Things great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
★★★★★ 5
Leather wallet
Color: Black (Passcase)
Very nice wallet would buy again I
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Reviewed in the United States on April 19, 2026
★★★★★ 1
Less than a week of use and peeling
Color: Black (Passcase), Color: Black (Passcase)
I got this as a gift for my husband and he used it for less than a week and the edges are already peeling. It seems more plastic than real leather. Very disappointing for the price. Would not expect this from Carhartt as their quality is typically very good.
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Reviewed in the United States on March 22, 2026
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