Matsubara, S., Kato, A. (1989) A barian bannisterite from Japan. Mineralogical Magazine, 53 (369) 85-87 doi:10.1180/minmag.1989.053.369.09
| Reference Type | Journal (article/letter/editorial) | ||
|---|---|---|---|
| Title | A barian bannisterite from Japan | ||
| Journal | Mineralogical Magazine | ISSN | 0026-461X |
| Authors | Matsubara, S. | Author | |
| Kato, A. | Author | ||
| Year | 1989 (March) | Volume | 53 |
| Issue | 369 | ||
| Publisher | Mineralogical Society | ||
| Download URL | https://rruff.info/doclib/MinMag/Volume_53/53-369-85.pdf+ | ||
| DOI | doi:10.1180/minmag.1989.053.369.09Search in ResearchGate | ||
| Generate Citation Formats | |||
| Mindat Ref. ID | 1476 | Long-form Identifier | mindat:1:5:1476:6 |
| GUID | 0 | ||
| Full Reference | Matsubara, S., Kato, A. (1989) A barian bannisterite from Japan. Mineralogical Magazine, 53 (369) 85-87 doi:10.1180/minmag.1989.053.369.09 | ||
| Plain Text | Matsubara, S., Kato, A. (1989) A barian bannisterite from Japan. Mineralogical Magazine, 53 (369) 85-87 doi:10.1180/minmag.1989.053.369.09 | ||
| In | (1989, March) Mineralogical Magazine Vol. 53 (369) Mineralogical Society | ||
| Abstract/Notes | AbstractChemical analyses of bannisterite from the Kamo mine, Toba City, Mie Prefecture, Japan, give Ba : Ca = 69:31–55:45, yielding the ideal formula with Ba > Ca, i.e. (Ba,Ca)(K,H3O)(Mn2+ · Mg,Fe2+)21 (Si,Al)32(O,OH)92 · nH2O, where Ba > Ca, Mn2+ > Mg, Fe2+,Si ≫ Al, and O > OH. The unit cell parameters calculated after the indexing of the X-ray powder pattern are: a = 22.95, b = 16.52, c = 25.66 Å, β = 94.2°. It occurs as dark brown veinlets cutting massive caryopilite-rhodochrosite ore, which is also cut by veinlets of manganoan chlorite (Mn/(Mg + Mn + Fe) = c. 0.30–0.39) with minor barian orthoclase (Ba/(K+ Ba) = 0.05 ∼ 0.06). | ||
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