Barite crystals from Morocco, white radial formations on earthy matrix, mineral specimen for collectors

ACTINOLITE, EPIDOTE, ANDRADITE, SKARN, MAGNETITE, KARA MINE, HAMPSHIRE, TASMANIA

80 40 50 222
$225.00
Sale price  $225.00 Regular price 
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Barite crystals from Morocco, white radial formations on earthy matrix, mineral specimen for collectors

ACTINOLITE, EPIDOTE, ANDRADITE, SKARN, MAGNETITE, KARA MINE, HAMPSHIRE, TASMANIA

$225.00
Sale price  $225.00 Regular price 
Shipping calculated at checkout.
Size (HWD in mm) Weight in gr80 40 50 222

This complex specimen is skarn with the lot. Actinolite lined open vug  with epidote and a few scattered andradite ite on magnetite matrix.  

Actinolite is a silicate mineral belonging to the amphibole group, characterized by the chemical formula Ca2(Mg4.5–2.5Fe2+0.5–2.5)Si8O22(OH)2.

Its name originates from the Greek term aktis, which translates to "beam" or "ray," reflecting its fibrous structure.

Actinolite serves as an intermediate in a solid-solution series between magnesium-rich tremolite and iron-rich ferro-actinolite, allowing for the exchange of magnesium and iron ions within its crystal lattice.

This mineral is often found in metamorphic rocks, particularly in contact zones around cooled intrusive igneous formations, and results from the metamorphism of magnesium-rich limestones. Additionally, the term uralite is sometimes used to describe an alteration product of primary pyroxene that predominantly consists of actinolite, commonly found in metamorphosed gabbro or diabase, known as epidiorite.

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