SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
登录注册
主页关于 MindatMindat手册Mindat的历史版权Who We Are联系我们于 Mindat.org刊登广告
捐赠给 MindatCorporate Sponsorship赞助板页已赞助的板页在 Mindat刊登 广告的广告商于 Mindat.org刊登广告
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe Elements书籍及杂志
搜索矿物的性质搜索矿物的化学Advanced Locality Search随意显示任何一 种矿物Random Locality使用minID搜索邻近产地Search Articles搜索词汇表更多搜索选项
搜索:
矿物名称:
地区产地名称:
关键字:
 
Mindat手册添加新照片Rate Photos产区编辑报告Coordinate Completion Report添加词汇表项目
Mining Companies统计会员列表Mineral Museums矿物展及活动The Mindat目录表设备设置
照片搜索Photo GalleriesSearch by Color今天最新的照片昨天最新的照片用户照片相集过去每日精选照片相集Mineral Photography

Johachidolite

This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About JohachidoliteHide

Formula:
CaAlB3O7
Colour:
Colorless, white, pale yellow, light green
Hardness:
Specific Gravity:
3.4
Crystal System:
Orthorhombic
Name:
Named for its type locality, Johachido District, North Korea, an obsolete Japanese colonial-era name for the locality.

Classification of JohachidoliteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1942
6.CC.05

6 : BORATES
C : Triborates
C : Phyllo-triborates
24.5.3.1

24 : ANHYDROUS BORATES
5 : Miscellaneous
10.1.16

10 : Borates with other anions
1 : Borates with halide

Physical Properties of JohachidoliteHide

Transparency:
Transparent
Colour:
Colorless, white, pale yellow, light green
Streak:
White
Hardness:
7½ on Mohs scale
Fracture:
Sub-Conchoidal
Density:
3.4 g/cm3 (Measured)    

Optical Data of JohachidoliteHide

Type:
Biaxial (+)
RI values:
nα = 1.712(2) nβ = 1.717(1) nγ = 1.726(1)
Max Birefringence:
δ = 0.014
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
relatively strong r> v
Pleochroism:
Non-pleochroic

Chemical Properties of JohachidoliteHide

Formula:
CaAlB3O7

Crystallography of JohachidoliteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Cmma
Cell Parameters:
a = 9.767(2) Å, b = 11.723(3) Å, c = 4.3718(5) Å
Ratio:
a:b:c = 0.833 : 1 : 0.373
Unit Cell V:
408.3 ų
Z:
4
Morphology:
Occurs as grains and lamellar masses.

Type Occurrence of JohachidoliteHide

General Appearance of Type Material:
Grains and lamellar masses.
Geological Setting of Type Material:
Nepheline dikes traversing limestone.
Reference:
Iwase, E., Saito, N. (1942) Johachidolite - a new mineral of hydrous fluoborate of sodium, calcium and aluminium. Scientific Papers of the Institute of Physical and Chemical Research, Tokyo: 39: 300-304.

Other Language Names for JohachidoliteHide

Simplified Chinese:硼铝钙石

Common AssociatesHide

Associated Minerals Based on Photo Data:
7 photos of Johachidolite associated with QuartzSiO2
4 photos of Johachidolite associated with MuscoviteKAl2(AlSi3O10)(OH)2
3 photos of Johachidolite associated with HackmaniteNa8Al6Si6O24(Cl2,S)
1 photo of Johachidolite associated with SodaliteNa4(Si3Al3)O12Cl
1 photo of Johachidolite associated with Mica Group

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

10.1.1TeepleiteNa2[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
10.1.2BandyliteCu[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
10.1.3BerboriteBe2(BO3)(OH,F) · H2OTrig.
10.1.4FluoboriteMg3(BO3)(F,OH)3Hex.
10.1.5BoraciteMg3(B7O13)ClOrth. mm2 : Pca21
10.1.6KarliteMg7(BO3)3(OH,Cl)5Orth.
10.1.7ShabyniteMg5(BO3)(OH)5(Cl,OH)2 · 4H2OMon.
10.1.8/9/10HilgarditeCa2B5O9Cl · H2OTric. 1 : P1
10.1.11SolongoiteCa2(H3B3O7)(OH)ClMon.
10.1.12HydrochlorboriteCa4B8O15Cl2 · 21H2OMon.
10.1.13EkateriniteCa2(B4O7)(Cl,OH)2 · 2H2OHex.
10.1.14VolkovskiteKCa4[B5O8OH]4[B(OH)3]2Cl · 4H2OTric. 1 : P1
10.1.15ChelkariteCaMgB2O4(Cl,OH)2 · 5H2O Or near, with Cl:OH = 3:1Orth.
10.1.17SatimoliteKNa2(Al5Mg2)[B12O18(OH)12](OH)6Cl4·4H2OTrig. 3m (3 2/m) : R3m
10.1.18ChambersiteMn2+3(B7O13)ClOrth. mm2 : Pca21
10.1.19Congolite(Fe2+,Mg)3(B7O13)ClTrig. 3m : R3c
10.1.20EricaiteFe2+3(B7O13)ClOrth.

Fluorescence of JohachidoliteHide

Intense blue fluorescence (UV) due to traces of REEs.

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for JohachidoliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Iwase, E., Saito, N. (1942) Johachidolite - a new mineral of hydrous fluoborate of sodium, calcium and aluminium. Scientific Papers of the Institute of Physical and Chemical Research, Tokyo: 39: 300-304.
Fleischer, M. (1948) New mineral names. American Mineralogist: 33: 98-100.
Palache, C., Berman, H., Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 384.
Davies, W.O., Machin, M.P. (1968) Johachidolite, a revised chemical formula. The AMerican Mineralogist: 53(11-12): 2082-2084.
Moore, P.B., Araki, T. (1972) Johachidolite, CaAl[B3O7], a borate with very dense atomic structure. Nature Physical Science: 240: 63-65.
Aristarain, L.F., Erd, R.C. (1977) Johachidolite redefined: a calcium aluminum borate. American Mineralogist: 62: 327-329.
Grew, E.S., Anovitz, L.M. (1996) BORON: Mineralogy, Petrology and Geochemistry, second edition, as revised (2002).
Harding, R.R., Francis, J.G., Oldershaw, C.J.E., Rankin, A.H. (1999) Johachidolite - a new gem. The Journal of Gemmology: 26(5): 324-329.
Peretti, A., Peretti, F., Tun, N.L., Günther, D., Hametner. K., Bieri, W., Reusser, E., Kadiyski, M., Armbruster, T. (2007) Gem quality johachidolite: occurrence, chemical composition and crystal structure. Contributions to Gemology: 2007(5): 1-53.
Kawano, J., Abduriyim, A. (2007) Natural johachidolite. Gemmology: 38(459): 12-14.
Chadwick, K.M., Breeding, C.M. (2008) Color variations and properties of johachidolite from Myanmar. Gems and Gemology: 246-251.
Kadiyski, M., Armbruster, T., Günther, D., Reusser, E., Peretti, A. (2008) Johachidolite, CaAl[B3O7], a mineralogical and structural peculiarity. European Journal of Mineralogy: 20: 965-973.

Internet Links for JohachidoliteHide

Localities for JohachidoliteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Myanmar
 
  • Mandalay Region
    • Pyin-Oo-Lwin District
http://www.ruby-sapphire.com/r-s-bk-burma2.htm; Nobuaki Fukuchi and Hiroharu Mastueda (2009): Johachidolite from Mogok, Myanmar. 2009 Annual Meeting of Japan Association of Mineralogical Sciences, Abstracts Volume, Abs. R4-P10, p. 118.
Knut Eldjarn specimen; Peretti, A., Peretti, F., Tun, N.L., Günther, D., Hametner. K., Bieri, W., Reusser, E., Kadiyski, M., Armbruster, T. (2007): Gem quality johachidolite: occurrence, chemical composition and crystal structure. Contrib. Gemol., 2007 (5), 1-53.
Dr. Marcus Origlieri specimens; Ted Themelis (2008) Gems & mines of Mogok
North Korea (TL)
 
  • North Hamgyong Province
    • Kilju County
      • Changbaeng-myon
Iwase, E. and Saitou, N. (1942) Reports of Scientific Research Institute, 39, 1077.
 
矿物 and/or 产地  
版权所有© mindat.org1993年至2020年,除了规定的地方。 Mindat.org全赖于全球数千个以上成员和支持者们的参与。
隐私政策 - 条款和条款细则 - 联络我们 Current server date and time: 2020.9.24 12:11:43 Page generated: 2020.6.27 03:37:42
Go to top of page