Red Hematoid Quartz 12x25-40mm Graduated Side Drilled Points - 15-16 Inch Origin_Brazil/Africa When they're dry

When they're dry

A Manganese inosilicate (or chain silicate)

and is traceable to virtually all ancient civilizations

with a chemical composition of sodium aluminum oxide

Red Hematoid Quartz 12x25-40mm Graduated Side Drilled Points - 15-16 Inch Origin_Brazil/Africa When they're dryHematoid Quartz is Quartz with inclusions of hematite. The hematite inclusions are responsible for the stones color, which can be yellow, orange, golden brown and red. Quartz has been highly valued by virtually every civilization throughout history, often used in healing and meditation and as religious objects in funerary rites and to dispel evil.