| 单词 |
pyroxmangite |
| 释义 |
pyroxmangite Min.|paɪərɒksˈmæŋgaɪt|
[f. pyroxene + manganese + -ite1.]
A manganese- and iron-containing pyroxenoid, (Mn,Fe)SiO3.
1913Ford & Bradley in Amer. Jrnl. Sci. CLXXXVI. 169 (heading) Pyroxmangite, a new member of the pyroxene group and its alteration product, skemmatite. 1937Amer. Mineralogist XXII. 720 The discovery of a further occurrence of pyroxmangite among the Lewisian rocks of Scotland has provided additional data on this interesting mineral. Ibid., The pyroxmangite forms an important constituent of a manganiferous schist interbedded with a series of para-gneisses... Pyroxmangite in this rock occurs in pink grains of ½–3/4 mm. average grain size. Exceptionally grains up to 5 mm. diameter may appear as porphyroblasts. 1963W. A. Deer et al. Rock-Forming Minerals II. 201 Pyroxmangite is a mineral of metamorphic or metasomatic rocks, being found typically in manganese-rich assemblages in association with spessartine garnet, tephroite,..or rhodochrosite. 1970New Scientist 15 Jan. 94/2 Some 68 elements forming minerals familiar to geologists were sorted out of the lunar soil and rock, along with three new minerals. They..were identified as a titanium⁓chromium spinel, a ferro-pseudobrookite and a pyroxmangite. |
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