Hematite Copper Plated 2mm Cube - 15-16 Inch R0911 or x-ray analysis

or x-ray analysis

Chrome-bearing fuchsite (a variety of muscovite mica) is the classic inclusion

a clam found along the New England coast

” Tourmaline is unusual in that it is both pyroelectric and piezoelectric

as Obsidian can be formed into a blade many times sharper than steel surgical blades

Hematite Copper Plated 2mm Cube - 15-16 Inch R0911 or x-ray analysisHematite is an iron oxide and one of the few gemstones with a metallic luster. When tumbled it can have the look of polished steel. Hematite is black to steel to gray or silver to gray, as well as brown to reddish brown or red in color. Its name is derived from the Greek word for blood, haima, owing to its red appearance when sliced thinly or powdered.