Hematoid Quartz Copper 4mm Round - 15-16 Inch Pink Emerald The presence of chromium is

The presence of chromium is what gives a ruby its red color

It is a particularly unusual gem because it exhibits a special optical property known as "tenebrescence

” The orange color is attributed to the presence of hematite or goethite within the rock

Hemimorphite is a favorite collector gem because it occurs in a range of spectacular colors

Specially formed jaws hold a Pinch Bail steadily in place while giving space for closing

Hematoid Quartz Copper 4mm Round - 15-16 Inch Pink Emerald The presence of chromium isHematoid 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.