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RED OCHRE

Red ochre is a natural earth pigment that consists primarily of iron oxide (hematite), giving it its distinct reddish-brown color. They are made of complexion and are extremely high in mineral oxides. Alumina silicate and iron oxide make up Red Ochre. Red ochre is also known as “Geru”. It has been used by humans for thousands of years for painting, art, and decoration. Red ochre is a pigment derived from a naturally occurring earthy iron ore, typically made from either red (hematite) or yellow (limonite) varieties. Hematite, in particular, is used in both abrasives and pigments, and it serves as one of the most common sources of iron.

Aplications

Ceramic, Glassmaking, Abrasivematerial, Foundrysand, Petroleum Industry

Chemical Composition Unit Result
Silica As SiO2 >% 37.77
Magnesium Oxide As MgO % 0.09
Calcium Oxide As CaO % 0.56
Iron Oxide As Fe203 % 18.69
Alumina Oxide As A1203 % 29.54
Loss of ignition % 9.24
Sizes % 0-200mm & 100 + mesh

Features of Red Ochre:

1. Natural Pigment: Red ochre is a stable, non-toxic, and naturally occurring pigment.

2. Durability: Highly resistant to fading, making it ideal for long-lasting art and decoration.

3. Versatility: Can be used in various mediums, including paints, ceramics, and cosmetics.

4. Cultural Significance: Historically valued in art, rituals, and ceremonies across cultures.

5. Heat Resistance: Retains its color even at high temperatures, useful in pottery and ceramics.

6. Eco-Friendly: : A natural, sustainable alternative to synthetic pigments.

7. Wide Color Range: Provides shades from deep red to reddish-brown, depending on the iron oxide content.