Description - This calcium carbonate is a natural mineral sourced from high purity white minerals from the richest stone belts. It is ideal for cosmetic purposes. Particle size distribution 5.5 µm.
Benefits - 
Excellent texturizer, functional filler and extender in various powder cosmetics
Enhances the creaminess of emulsions (creams and lotions)
Enhances the amount and speed of foam generation in surfactant systems (shampoos, shower gels)
Widely used as buffering and neutralizing agent
Useful as opacifying agent in cosmetic applications containing pigments
Has anti-microbial activity
Can replace talc in formulas, especially when combined with boron nitride sericite
Use - Add as is to formulas. Typical use level is 0.5-25% depending on formula. For external use only. Calcium carbonate absorbs oil extremely well, so it can be found in cosmetics and skin care products as an oil control/mattifying ingredient. The high pH of calcium carbonate means you need to be careful with use around the eyes, though.You’ll also find calcium carbonate in toothpastes as a mild abrasive.
Applications - Decorative cosmetics, make-up, face powders, creams & lotions, hair care products, Ideal for facial cleansers, scrubs, masks, and body powders.
Solubility - Barely soluble in water
pH Value - Maintains a near-neutral to mildly alkaline pH (approximately 8–9).