SKU: 57158331834

Chocolate dogtooth calcite, small

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Description

Chocolate dogtooth calcite, smallLocale: Santa Eulalia, Chihuahua, Mexico Approx size: 22. 5" Approx weight: 45120g Known by the trade name "chocolate dogtooth calcite," this type of calcite from the famed Santa Eulalia mining district grows in hedgehog clusters of sharp dogtooth (scalenohedral) crystals. The variety gets its distinctive opaque dark brown appearance from iron oxides; a layer of hematite included calcite is deposited on the surface during a later phase of growth.

Locale: Santa Eulalia, Chihuahua, Mexico

Approx size: 2–2.5"

Approx weight: 45–120g

 

Known by the trade name "chocolate dogtooth calcite," this type of calcite from the famed Santa Eulalia mining district grows in hedgehog clusters of sharp dogtooth (scalenohedral) crystals. The variety gets its distinctive opaque dark brown appearance from iron oxides; a layer of hematite-included calcite is deposited on the surface during a later phase of growth.

Broken crystals reveal the first phase of growth was quite clear, a semi-transparent interior with a dark brown border. Calcite has perfect cleavage so it is common to have a point or two that has cleaved off, leaving a flat smooth window displaying this growth. Many specimens also show signs of natural etching that can leave the tip of crystals blunted or hollow. Some have a neat almost hoppered effect!

Very small crystals often dot the surface of the calcite, as seen in the initial surface detail image (featuring Option C). This includes tiny points of quartz, some with a slight smoky-quartz tint. The lumpy brown mineral on option H may be weathered goethite.

UV reactivity: the presence of iron dampens any reaction in the brown calcite, which is non-reactive. Where the clear calcite interior is exposed you may get a good peachy-red reaction using 365nm UV light, with some phosphorescence. All options have good reaction, except Option G which has limited reaction and less-visible white reaction. 

Option D has especially good zoned fluorescence (it is the example shown fluorescing!). It has three flower-shapes of yellow glow at the center of radial calcite formations, with peachy-red material around it.

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SKU: 57158331834

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4.7 ★★★★★
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Aaron harkcom
Alexandria, US
★★★★★ 5
Great value and super convenient for everyday use!
Size: 300 Count
exactly what I needed for busy days and quick cleanups. They’re sturdy enough for everyday meals like sandwiches, snacks, and even lighter hot foods without getting soggy or falling apart. I love the convenience of having such a large pack on hand — it lasts a long time and is perfect for families, parties, or meal prep days. The size is just right for most meals, and they stack easily for storage. For the price and quantity, it’s a great deal and saves so much time on dishwashing. Definitely a household staple I keep restocking!
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Reviewed in the United States on May 18, 2026
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lmoody
Phoenix, US
★★★★★ 5
No more tangled cord
Size: 4 Pack (4 PCS), Color: Black
Great for work. Stops Phone cord from getting so tangled. This was a life saver. My coworkers liked it so much that they have now bought one for their phones.
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Reviewed in the United States on April 30, 2026
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lmfancher1978
Birmingham, US
★★★★★ 5
No Tangles Here!!!
Size: 4 Pack (4 PCS), Color: Black
So easy to hook into my office phone! I was so tired of tangled up phone cords! The Uvital cord detanglers are amazing!
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Reviewed in the United States on March 28, 2026
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ashley h
Bozeman, US
★★★★★ 5
Works perfectly
Size: 4 Pack (4 PCS), Color: Black
Still have a landline phone on my desk at work. The tangled up chord drove me crazy everyday. This is a little thing that makes me happy at my desk. and the add on detangler has stopped the chord from getting a single new kink in it.
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Reviewed in the United States on April 13, 2026
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Kindle Customer
Louisville, US
★★★★★ 4
Detangler works
Size: 2 Pack (2 PCS), Color: White
Detangler works well with corded phone set.
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Reviewed in the United States on April 12, 2026

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