hematite

Hematite

Hematite is a gemstone form of iron oxide. It is the principal ore of iron and one of the few gemstones that exhibits a metallic luster.

Hematite is the most abundant and economically important source of iron in our world. Since the beginning of the Iron Age, hematite has played an integral role in human society as one of our primary source of iron. Rust is simply another form of hematite and hematite dust is responsible for the reddish colour of many soils and the Martian landscape.

Stock sizes: Available in Cabochon, Intaglio signet stones and coin sized discs
Round Cabochon: 2mm – 25mm
Oval Cabochon: 5x3mm – 40x30mm
Pear Cabochon: 7x5mm – 25x15mm
Oval Intaglio: 6x4mm – 25x18mm
Round Intaglio: 8mm – 12mm
Oval Intaglio: 6x4mm – 25x18mm
Antique Intaglio: 6x6mm – 16x14mm
Rectangle Intaglio: 7x5mm – 20x15mm
Square Intaglio: 6mm – 12mm
Octagon Intaglio: 6x4mm – 14x12mm
Coin: 10th Krugerrand, 1/2 Sovereign, full Sovereign

Chemical Formula: Fe2O3
Crystal Structure: Trigonal
Colour: Metallic grey
Hardness: 5.5-6.5 on Moh`s scale
Refractive Index: 2.940 to 3.220
Specific Gravity: 5.12 to 5.28
Cleavage: None

Treatments: None

Care: Hematite can be cleaned easily with warm water and a mild soap or detergent. It can be wiped with a soft cloth or brush. Avoid abrasives and chemicals as too many surface scratches will cause loss of polish and luster. Avoid exposure to extreme heat and temperature fluctuations.