Potassic magnesio-hastingsite 2.60 ct.

Potassic-Magnesio-hastingsite

A complex silicate that belong to the amphibole group: the formula is

(K,Na)Ca2(Mg,Fe++,Fe+++,Al)5(Si,Al)8O22(OH,Cl)2 and hardness 6 .

Unusual mineral from an interesting location: alluvial Galcier field on Lapie River,St.Cyr Range, 23 Km s/w of Ross River, Yukon Territory,Canada.

Size:8.2x8.2x5.8 mm.

Weight:2.60 ct.

CODE#3722