SKU: 23799740337

Dendritische kwarts

Sale price$74.25 Regular price$82.50
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Ships within 48 hours · Estimated delivery Jul 30 - Aug 4

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Description

Dendritische kwartsDendritische kwarts met zijn boomachtige, varenachtige vormen en takken is een zeer interessante en aangename steen. Hoewel het dendritische patroon lijkt op een gefossiliseerde plant, is het in werkelijkheid niet organisch. Wanneer vocht en ijzer zich vermengen ontstaat er oxidatie, beter bekend als roest. Oxidatie is een alledaags verschijnsel. Het gebeurde zelfs in edelstenen. Sporen van vocht en ijzer of mangaan zaten vast in kwarts, wat vlekken

Dendritische kwarts met zijn boomachtige, varenachtige vormen en takken is een zeer interessante en aangename steen. Hoewel het dendritische patroon lijkt op een gefossiliseerde plant, is het in werkelijkheid niet organisch. Wanneer vocht en ijzer zich vermengen ontstaat er oxidatie, beter bekend als roest. Oxidatie is een alledaags verschijnsel. Het gebeurde zelfs in edelstenen. Sporen van vocht en ijzer of mangaan zaten vast in kwarts, wat vlekken veroorzaakte die op bomen of takken leken

Dendrieten worden meestal gevormd door mangaanoxide. Sommige van de andere mangaanoxiden die dendrieten vormen, bevinden zich in de hollandiet ngroep van mangaanoxiden. Het zijn coronadiet, cryptomeleen en hollandiet. Twee andere mangaanoxide-mineralen die dendrieten vormen, zijn romanechiet en todorokiet.

Het woord dendriet komt van het Griekse woord "dendron", wat boom betekent. Vandaar de naam Dendritisch of Dendrietkwarts.

 

✧ Afmeting

Bij de bestelling van dit product ontvang je het kristal van de foto.

Doorsnee 40mm

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SKU: 23799740337

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4.1 ★★★★★
Based on 30 reviews
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Verified Purchase
BJ Anderson
Charlottesville, US
★★★★★ 4
Very warm and comfortable
Color: White, Size: X-Large
Coat is great! My zipper goes up flawlessly but it hangs up and won’t go down when I try and unzip coat. I actually need to wiggle it a little with downward pressure then it releases and down it goes. Other than that, I love this coat. I wear it in frigid below zero temps for night hunting. We’re talking -10 degrees or more and this coat has me completely comfortable. I love it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026
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Verified Purchase
Kristen V
San Leandro, US
★★★★★ 5
Great jacket. True to size
Color: White, Size: Large
Gift for my son. He loves it. Fits true to size
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Reviewed in the United States on January 20, 2026
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Verified Purchase
sonia
Draper, US
★★★★★ 5
Coat
Color: White, Size: Large
Great buy. Comfy and warm
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
J
Verified Purchase
jim
Draper, US
★★★★★ 5
it took a bit of time to get it because it shipped from China
Color: Blue Gray, Size: X-Large
nice jacket fits good light weight and warm easy zip pockets and front zipper should hold up
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Reviewed in the United States on November 5, 2025
T
Tony
Lexington, US
★★★★★ 4
ITS SO FLUFFY
Color: White, Size: X-Large
This jacket is magical. For the price it’s pretty amazing. The only reason this isn’t a 5 star is the zipper is a little on the cheap feel side. Kinda loose feeling while zipping up. I’ve had no issues with it though. That’s being nitpicky. If you don’t have a weird feel for zippers it’s a 5 star review. Very lightweight and very comfortable and warm. I love the sleeve that goes past the cuff so if you are wearing gloves it helps shield them as well to stay warm. Great design and the fit is your regular fit. If you wear a large, get the large. If you want a little room underneath go one size higher. I did that because I like my winter jackets with a little bit of room. Great jacket would highly recommend
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Reviewed in the United States on January 30, 2025

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