Updated: 16 Jul 2025

10 Best calcium carbonate powder for chalk paints of 2025

Updated: 16 Jul 2025

#1

Best Choice

Best Naturals Calcium Carbonate Powder 1 Pound - Food Grade (16 OZ (Pack of 3))

9.8

Best Naturals

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Main highlights

½ Level Teaspoon (1.6 g) of Calcium Carbonate per Serving, 284 Servings per bottle.

Non-GMO & Gluten-Free.

3rd Party Lab Tested for Purity & Quality.
#2

Best Value

Calcium Carbonate 5lb by Essencea Pure Bulk Ingredients | Calcium Supplement | Chalk Powder | Food Preservative (80 Ounces)

9.7

Essencea

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Main highlights

Our calcium carbonate is sourced from a natural and clean source. It is Non-GMO, gluten free, soy free, dairy free, and has no additives.

Ingredients: 100% Pure Calcium Carbonate - Chalk Powder.

Calcium Carbonate by Essencea Pure Bulk Ingredients comes in a resealable pouch to maintain its freshness throughout.
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#3

Gen Pack Calcium Carbonate 1Kg

9.6

Vetsense

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Main highlights

Maintains bones, teeth, nervous system, muscle function, blood clotting mechanism and cardiac function

Contains high levels of calcium (40 percent elemental calcium)

An all natural feed grade powder
#4

Best Naturals Calcium Carbonate 1 Lb. Powder

9.5

Best Naturals

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Main highlights

No Artiﬁcial Color, Flavor or Sweetener, No Preservatives, No Sugar, No Starch, No Corn, No Soy, No Egg, No Lactose, No Gluten, No Wheat, No Yeast, No Fish, No Sodium.

All Best Naturals products are manufactured in accordance with Good Manufacturing Practices (GMP), among the highest standards in the world -- Proudly Made in USA -- Purity & Potency Guaranteed

100% POTENT & PURE - Best Naturals Calcium Carbonate powder form is 100% pure, and free of fillers and preservatives, much lower in cost, easy to digest and can be taken in desired potencies. Powdered vitamins and minerals are truly the best way to take supplements.
#5

Gen Pack Calcium Carbonate 5Kg

9.4

Vetsense

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Main highlights

Contains high levels of calcium (40 percent elemental calcium)

Calcium can be supplemented to promote the development of bones along with muscle function

An all natural feed grade powder
#6

NOW Calcium Carbonate Powder, 12-Ounces

9.3

NOW

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Main highlights

Supports bone health

High percentage of calcium

100% pure powder
#7

Earthborn Elements Calcium Carbonate Powder (1.5 lb) Convenient Mess Free Resealable Tub, for Strong Teeth & Bones, Natural Antacid, More by

9.2

Earthborn Elements

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Main highlights

HIGHEST QUALITY: FCC APPROVED FOOD GRADE.

FOR STRONG TEETH & BONES. NATURAL ANTACID.

CALCIUM SUPPLEMENT: Pure Calcium Carbonate.
#8

Kusakabe 383514 Pigment, Light Calcium Carbonate, 1.4 oz (40 g)

9.1

Kusakabe

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Main highlights

Weight:40g

Size: 2.0 x 3.5 x 5.9 inches (5

Capacity: 1.4 oz (40
#9

Calcium Carbonate (Marble Dust Fine)

9.0

terrachrom

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Main highlights

The granularities of Marble dust can vary from 0 to 400 microns. Different granularities of Marble Dust available in 1 kg, 5kg, and 25 kg bags:

How to Mix Marble Dust into Paint or other base products: Start with a small amount of Marble dust and gradually mix it into your paint or other base product. Add more dust to the mixture to make it thick and pasty. If the mixture is too thick, add more paint/ other base to thin it out. Continue experimenting with adding marble dust to the mixture until you are happy with the consistency. Composition: Calcium Carbonate CaCO3: 99.1% + Fe2O3:0.03% + MgCO3:0.8% Hardness: MOHS3 Specific Gravity: 2.7 Refractive Index: 1.59 Oil absorption: 10 g oil/ 100g pigment Moisture content: 12%

Extra-Fine Marble Dust (0-50μ Average diameter:10, Density: 0.7 / packed:1.35)
#10

HOWARD PRODUCTS Chalk-Tique Powder Additive - Transform Regular Water Base Paint Into Chalk Style Paint DIY Projects Perfect Easy Distress & Wax Antique Look Creat

8.9

Howard

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Main highlights

TRANSFORMING CAPABILITY: Transforms your ordinary water-based paint into a durable, easily-distressed, chalk-style paint. Use it with any painting project to achieve an amazing antique look.

REVITALISE OLD FURNITURE: Breathe new life into worn-out items. Our Chalk-Tique powder additive is perfect for adding an antique, rustic appearance to any piece of furniture.

REUSABLE: Make the most out of leftover paints! Use our Chalk-Tique additive with any existing water-based paints to create unique home décor projects.