This is an unusually nice Bustamite Specimen featuring many quite gemmy crystals poking out of the galena matrix. There are also some nice dark Garnet crystals apparent. Bustamite is quite a bit rarer than the Rhodonite more often found with the Galena from this location. The colour and shape of the crystals in this matrix are also above average. This is a great overall example of Broken Hill minerals to add to your Australian mineral collection.
5.4cm x 5.6cm x 3.5cm, 226g.
Broken Hill, NSW, Australia.
A calcium manganese inosilicate (chain silicate) and a member of the Wollastonite group of minerals. Magnesium, Zinc and iron are common impurities substituting for Manganese. It is much lighter in colour than Rhodonite, but can be confused with it especially as both minerals can be found together and in similar Galena matrices.