Bismuth Oxychloride: Translucent mineral with fair absorbency & good adhesion. Used to add shine to mineral makeup formulas. This mineral may cause allergic reactions or breakouts, and is thus avoided by Erth Minerals.
Boron Nitride: Mineral with average coverage and high adhesion qualities. Light & silky texture. Oftentimes added to formulas to increase adhesion & slip.
Kaolin Clay: Average coverage, high absorbency & adhesion, creamy mineral. Very absorbent & used in small amounts to increase adhesion or oil absorption. Avoid using much of this on dry skin types.
Magnesium Stearate: Average coverage, matte, high adhesion mineral. Used to increase adhesion in some mineral makeup formulas.
Micronized Titanium Dioxide: More expensive, more translucent, and more UV protection than regular titanium dioxide.
Rice starch: Translucent with fair cohesion. Considered to be a skin soother & emollient.
Sericite Mica: Translucent mica with fair absorbency & good adhesion. Used to add shine to a mineral makeup formula. Silky to the touch.
Talc: Translucent, silky mineral. Has less of a dehydrating affect than kaolin clay.
Titanium Dioxide White: High coverage mineral whitener. Natural UV protection.
Zea Mays: Technical name for corn starch. Very translucent with good absorbency & silky texture. Has poor adhesion alone so should be combined with minerals which increase cohesion, such as kaolin clay.