Calderite is a mineral in the garnet group with the chemical formula (Mn 2+, Ca) 3 (Fe 3+, Al) 2 (Si O 4) 3. It is dark reddish brown to dark yellowish in color and generally granular massive in form. It was named for geologist James Calder who worked on the geology of India.
Calderite has faded from the literature and was not regarded as a valid species (Fleischer 1971, 1975), until the a manganese-iron garnet reported by Vermass (1952) from Namibia and the calderite reported from Labrador by Klein (1966) was reinvestigated by Dunn (1979).
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Calderite. Rare member of the Garnet group that is in intermediary between Spessartine and Andradite. The chemical formula of Calderite is (Mn,Ca) 3 (Fe 3+,Al) 2 Si 3 O 12. Back
Definition of calderite in the Definitions.net dictionary. Meaning of calderite. What does calderite mean? Information and translations of calderite in the most comprehensive dictionary definitions resource on the web.
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Calderite (Mn2+;Ca)3(Fe3+;Al)2(SiO4)3 °c 2001 Mineral Data Publishing, version 1.2 Crystal Data: Cubic. Point Group: 4=m 3 2=m: Granular, massive. Physical Properties: Hardness = 7 D(meas.) = 4.05 D(calc.) = 4.07 Optical Properties: Semitransparent. Color: Dark reddish brown to dark yellowish; yellow to pale greenish yellow in thin section.
Media in category "Calderite" The following 5 files are in this category, out of 5 total.
Synthesis and stability of the garnet calderite ... high calderite contents (up to 69 mol% after Klein 1966) ... Synthesis and stability of the garnet calderite in the system Fe-Mn-Si-O ...
Ankerite is a calcium, iron, magnesium, manganese carbonate mineral of the group of rhombohedral carbonates with formula: Ca(Fe,Mg,Mn)(CO 3) 2.In composition it is closely related to dolomite, but differs from this in having magnesium replaced by varying amounts of iron(II) and manganese.It forms a series with dolomite and kutnohorite.. The crystallographic and physical characters resemble ...