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Description
Lavender Amethyst 10mm Round AAA Grade - 15-16 InchLavender Amethyst is a transparent lavender variety of Amethyst, which forms in geodes and is generally found in clusters of crystal points. The presence of Manganese in the stone produces its color, while the amount of Iron in the stone varies its shade of purple. Amethyst has long been associated with February, the month the ancient Romans dedicated to Neptune, their water god, and it is the official birthstone of that month.
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.9 ★★★★★
Based on 915 reviews
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Product Reviews
★★★★★ 5
car performance improvement
I bought this to use in my 2021 chevrolet equinox when my check engine light came on with an exhaust issue. so far I believe it's working. I have noticed increased mileage and a little more "zip" in the engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 5
Works for us!
We use this regularly in my car. Seems to help keep sensors clear. My engine light comes on if I don’t add. We add it to gas tank. My husband says it’s because of poor quality (dirty) gas from other countries.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
★★★★★ 4
Works like a supplement
If you use it and see a difference, you will blame it on this cleaner, if not, you will say the product does not work. Exactly like your weight loss supplements! Who knows what this stuff does, but it may do something. Or maybe it does not.
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Reviewed in the United States on February 7, 2026
★★★★★ 5
Used to clean an O2 sensor
Seems to have resolved an issue with a wavering idle for my 89 Mercedes 300e with 468,000 miles.
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Reviewed in the United States on March 27, 2026
★★★★★ 3
Nothing
Didn’t work for me
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Reviewed in the United States on May 26, 2026
