Ore powders with a specific gravity above 5.5 include tungsten ore powder, iron ore powder, and barite powder.

1. Tungsten ore powder: Tungsten ore powder is a heavy metal ore powder with a specific gravity usually between 5.5 and 19. It is widely used in tungsten alloy manufacturing, electronic equipment, high-temperature materials and other fields.

2. Iron ore powder: Iron ore powder is ground and refined iron ore, usually with a specific gravity above 5.5. It is used in the steel manufacturing and metallurgical industries to produce iron products.

3. Barite powder: Barite is a calcium-containing ore, usually with a specific gravity between 5.5 and 6. It is widely used in building materials, ceramic manufacturing and chemical industries.