What is "hexagonite"

"Hexagonite" is the red to pink, lilac to purple manganoan variety of Tremolite. A rare amphibole, it can be transparent, translucent to opaque. Hexagonite is pleochroic, potentially displaying varying shades of blue, violet, purple or red. It is known also as " mangan-tremolite" since the manganese is said to give it is's unique colors. Pink and lilac purple are the most common colors.

Hexagonite, like Tremolite, is a calcium magnesium silicate hydroxide Ca2 ( Mg Fe)5 Si O8 ( OH)2. It has a Mohs hardness of 5- 6.

The mineral was given the name, hexagonite because it's crystal structure was believed at one time to be hexagonal. But since then, it has been found to be, in fact, monoclinic.

Transparent examples with nice coloration are most prized. Hexagonite can also display a good Cat's eye effect.

Today, it is found primarily in the Balmat-Edwards Zinc District of St. Lawrence County, New York United States. Although very rare, it can be found elsewhere also in other locations worldwide.

Hexagonite or Hexagonites can refer also to extinct molluscs.

Category:Minerals