Sonolite, a New Manganese Silicate Mineral

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説明

Sonolite, a new silicate mineral being the manganese analogue of clinohumite, occurs as fine-grained prismatic to anhedral crystals associated with rhodochrosite, galaxite, pyrochroite etc. from Sono, Hanawa, and Kusugi mines and other eight localities. Physical and optical properties of the mineral from Hanawa mine are : dull reddish orange in color ; hardness, 5.5 ; specific gravity, 3.82 (meas.) and 3.97 (calc.) ; colorless in thin section；biaxial negative with α=1.763, β=1.779, γ=1.793, (-)2V=75.5°-82°, ρ＞v, single or lamellae twinning on (001), (001)^X=9°-10°. Monoclinic with a_0=10.66_4Å b_0=4.88_2Å, c_0=14.29_9 Å, β=100°34’. The Chemical formula of sonolite from Hanawa mine is evaluated as (Mn_<7.80> Fe<0.16> Mg_<1.05> Ca_<0.16>）_<9.17>(Si_<3.45> Al_<0.62> Ti_<0.01>)_<4.08> O_<15.91>[(OH)_ <1.95>F_<0.14>]_<2.09>. Its ideal formula is Mn_9Si_4O_<16>(OH, F)_2 or 4Mn_2SiO_4･Mn(OH, F)_2. The mineral from Kusugi mine is also described. The mineral is named after Sono mine where the mineral was first found from. Relations of the mineral to alleghanyite and to humite group are discussed.

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詳細情報 詳細情報について

  • CRID
    1390290699732345216
  • NII論文ID
    120006875943
  • NII書誌ID
    AA00732897
  • DOI
    10.5109/1543583
  • HANDLE
    2324/1543583
  • ISSN
    00236179
  • 本文言語コード
    en
  • 資料種別
    departmental bulletin paper
  • データソース種別
    • JaLC
    • IRDB
    • Crossref
    • CiNii Articles
    • OpenAIRE
  • 抄録ライセンスフラグ
    使用可

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