岩石鉱物科学
Online ISSN : 1349-7979
Print ISSN : 1345-630X
原著論文
岡山県布賀鉱山産硼酸塩鉱物の結晶形態
高田 雅介草地 功岸 成具田邊 満雄安田 隆志
著者情報
ジャーナル フリー

2005 年 34 巻 5 号 p. 252-260

詳細
抄録

Some euhedral crystals of borate minerals were found in vugs and fissures in veins intruded into crystalline limestone near the gehlenite-spurrite skarns at the Fuka mine, Okayama Prefecture, Japan. The interfacial angle of the euhedral crystals was measured using a one circle reflecting goniometer. Used euhedral crystals are frolovite, henmilite, hexahydroborite, nifontovite, olshanskyite, pentahydroborite and uralborite. The possible indices of plane and zone axis were calculated from the unit cell parameters of each mineral, and compared with the average values of measurements. The indices of plane and zone axis were determined with maximum error of ±1.5 degree between the average value of measurements and calculated value. The crystal forms of frolovite, hexahydroborite, nifontovite, olshanskyite and uralborite are the first report in the world. The crystal forms of henmilite and pentahydroborite reported previously were corrected.

著者関連情報
© 2005 日本鉱物科学会
前の記事
feedback
Top