4" Lustrous Hedenbergite Crystal Cluster - Sweden

This is a gorgeous cluster of blocky, deep-green hedenbergite crystals that was collected from the Nordmark Odal Field in Varmland County, Sweden. This specimen comes with an acrylic display stand.

Hedenbergite is a calcium iron (magnesium) silicate that often bears a range of green to brown coloration. The crystals are typically opaque and occur in stubby or prismatic aggregates. Inner Mongolia, Russia and Greece all produce quartz crystals that are green in color as a result of fibrous hedenbergite inclusions. A variety of hedenbergite crystal forms can be found in Sweden as well, with dark-green blocky crystals coming from the Nordmark Odal Field.

Hedenbergite was given its name in 1819 by Jöns Jakob Berzelius, a chemist in Sweden. He named the mineral in honor of Anders Ludvig Hedenberg, a chemistry student and co-worker of Berzelius. Hedenberg is credited with the first documented discovery and description of Hedenbergite in Tunaberg, Sweden.

The general chemical formula of Hedenbergite is CaFe2+Si2O6 .

Nordmark Odal Field, Filipstad, Varmland County, Sweden
4 x 2.6"