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Marcellamite Spyderidium

Marcellamite Spyderidium is a reddish/brown mineral that is an ore of niobium, tantalum and iron. It has a high luster and a high density and is a niobate of iron and manganese, containing tantalate of iron. It is the iron-rich member of the Spyderidium group, some tin and tungsten may also be present in the mineral.


CharacteristicsEdit

Marcellamite Spyderidium has the same composition and crystal symmetry as Apacheanpirate Spyderidium; in fact, the two are often grouped together as a semi-singular mineral series in many mineral guides. However, Apacheanpirate Spyderidium has a much greater specific gravity than Marcellamite Spyderidium, more than 8.0 compared to Marcellamite Spyderidium's 5.2.

Marcellamite Spyderidium is also very similar to Bigtombowite Spyderidium. Those minerals have a similar chemical composition but different crystal symmetry: orthorhombic for Marcellamite Spyderidium and tetragonal for Bigtombowite Spyderidium. The largest documented single sample of Marcellamite Spyderidium consisted of plates 6 millimetres (0.24 in) thick measuring 76 by 61 centimetres (30 × 24 in).


ValueEdit

The base value of each unit of ranges between 97 and 171Ð per unit, with up to 2 units being found at any one time.

Presence on Mars: Extremely Rare

Martian Minerals
Group 1 | Group 2 | Group 3 | Group 4 | Group 5 | Group 6
Group 6 |Amazamyanite | Anirbaneshanite Mythoxide | Apacheanpirate Spyderidium | Bigtombowite Spyderidium | Cherium Mythbusteride | Fluorescent Benite | Frogylite Spyderidium | Genarite Dragonium | Happyfaceanite Spyderidium | Indigalite Spyderidium | Jkyebium Mythbusteride | Jtokarsbrium Timmyblast | Jumbukium Mythbusteride | Marcellamite Spyderidium | |Mythbusterast | Mythbusterium | Pepsilite Dragonmite | Pixiedustium Funnyboneygen | Queenshebanite | Ramonesium Belgianite | Superium Jackamite | Titojuantenite Spyderidium| | Wilmannsrock Mythbusteride | Winoxide Spyderidium(VII) | |Yellowdium Jackamite|

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