This is the best Rhodonite Sphere for sale with great colour and great size. The lovely Pink is the Rhodonite and the Black is Manganese Oxide. This beautiful pink and black sphere comes with a free hematite ring stand for enhanced display. A classic, collectable specimen mined, cut and polished in Australia. As you can see the beautiful pink color really comes out in the full sun photos. Normally I’d only take a few pics but just couldn’t help myself – it’s stunning. The high quality gloss finish is shown off better from pics in the shade outside.
Woods Mine, New England District, NSW, Australia.
The element manganese is an essential element in our daily food and has several industrial uses. Used in steel alloys to increase strength, hardness and durability. Manganese is also used to make glass an amethyst colour. That is not so surprising since manganese is the trace element responsible for quartz’s purple variety, amethyst.
Rhodonite is an attractive mineral, often carved and used in jewelry. Named in 1819 by Christoph Friedrich Jasche from the Greek “rhodon” or “rhodos” meaning “rose”, referring to its colour. Rhodonite does not react to acids. It is usually associated with black Manganese minerals, Galena and Pyrite.
Color is typically pink to red or orange and even black.
Luster is vitreous to dull to pearly on polished surfaces.
Transparency: Crystals are generally translucent and rarely transparent.
Crystal System is triclinic; bar 1
Crystal Habits include crystals that have a blocky prismatic habit, however crystals are rare. More typically massive, coarse and fine granular aggregates.
Cleavage is perfect in two directions forming prisms with a rectangular cross-section.
Fracture is conchoidal.
Hardness is 5.5 – 6.5.
Specific Gravity is approximately 3.4 – 3.7+ (above average for translucent minerals)
Streak is white.
Associated Minerals are calcite, pyrite, microcline, spessartine, pyroxmangite and other manganese minerals.
Other Characteristics: May tarnish to a brown or black color upon exposure until poslished.
Notable Occurrences include Ural Mountains, Russia; Broken Hill and Tamworth, Australia; Langban, Sweden, Menas Gerais, Brazil and Massachusetts and Franklin, New Jersey, USA.
Best Field Indicators are color, black inclusions, lack of reaction to acid and hardness.