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 Galleries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

Middlebackite

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

About MiddlebackiteHide

Formula:
Cu2C2O4(OH)2
Colour:
Turquoise-blue
Lustre:
Vitreous
Hardness:
2
Specific Gravity:
3.64 (Calculated)
Crystal System:
Monoclinic
Name:
For the Middleback Range, in which the type locality is situated.

Classification of MiddlebackiteHide

Approved
Approval Year:
2016
First Published:
2019

Physical Properties of MiddlebackiteHide

Vitreous
Transparency:
Translucent
Colour:
Turquoise-blue
Streak:
Pale blue
Hardness:
Tenacity:
Brittle
Cleavage:
Perfect
Fracture:
Irregular/Uneven
Density:
3.64 g/cm3 (Calculated)
Comment:
Calculated based on empirical formula

Optical Data of MiddlebackiteHide

Type:
Biaxial (+)
RI values:
nα = 1.663(4) nβ = 1.748(4) nγ = 1.861(4)
2V:
Calculated: 86.7°
Max Birefringence:
δ = 0.198
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
slight, r>v
Pleochroism:
Visible
Comments:
X = colourless, Y = very pale blue, Z = dark sky blue; Z>Y>X

Chemical Properties of MiddlebackiteHide

Formula:
Cu2C2O4(OH)2

Crystallography of MiddlebackiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.070 Å(16)
3.739 Å(100)
2.860 Å(18)
2.481 Å(12)
2.350 Å(9)

Type Occurrence of MiddlebackiteHide

General Appearance of Type Material:
Aggregates of blue prismatic crystals up to 0.3 mm across. Individual crystals are up to 0.05 mm long.
Place of Conservation of Type Material:
South Australian Museum, Adelaide, South Australia, Registration number G34300.
Associated Minerals at Type Locality:
Reference:
Elliott, P. (2019) Middlebackite, a new Cu oxalate mineral from Iron Monarch, South Australia: Description and crystal structure. Mineralogical Magazine: 83(3): 427-433.

Synonyms of MiddlebackiteHide

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 MiddlebackiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pring, A., Kolitsch, U. and Francis, G. (2000) Additions to the mineralogy of the Iron Monarch deposit, Middleback Ranges, South Australia. Australian Journal of Mineralogy: 6: 9-23. [as "UK05"]
Elliott, P. (2016) Middlebackite,IMA 2015-115. CNMNC Newsletter No. 30, April 2016, page 411. Mineralogical Magazine: 80: 407–413. [http://mineralchallenge.net/carbon-mineral-challenge-update-spring-2016-four-new-minerals-found/]
Elliott, P. (2019) Middlebackite, a new Cu oxalate mineral from Iron Monarch, South Australia: Description and crystal structure. Mineralogical Magazine: 83(3): 427-433.

Internet Links for MiddlebackiteHide

Localities for MiddlebackiteHide

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.
Australia (TL)
 
  • South Australia
    • Eyre Peninsula
      • Middleback Range
        • Iron Knob
Pring, A., Kolitsch, U. and Francis, G. (2000): Additions to the mineralogy of the Iron Monarch deposit, Middleback Ranges, South Australia. Australian J. Mineral. 6, 9-23. [as "UK05"]; Elliott, P. (2016): Middlebackite, IMA 2015-115. CNMNC Newsletter No. 30, April 2016; Mineralogical Magazine 80. [http://mineralchallenge.net/carbon-mineral-challenge-update-spring-2016-four-new-minerals-found/]
  • Western Australia
    • Upper Gascoyne Shire
O’Connor, B.H., Clarke, R.M., Kimpton, J.A., Allen, D.G. (2019): X-ray diffraction study of middlebackite [CuII2C2O4(OH)2, di-copper oxalate dihydroxide], using a mineral specimen from Mooloo Downs Station, Western Australia and chemically synthesized material. Powder Diffraction, 34(2), 1-14.; O’Connor, B.H., Clarke, R.M., Kimpton, J.A., Allen, D.G. (2019): X-ray diffraction study of middlebackite [CuII2C2O4(OH)2, di-copper oxalate dihydroxide], using a mineral specimen from Mooloo Downs Station, Western Australia and chemically synthesized material. Powder Diffraction, 34(2), 1-14. Clarke, R. M. and O’Connor, B. H. (2019). New mineralogical data for the mineral middlebackite [Cu2C2O4(OH)2], discovered at Moolooo Downs, Western Australia. Austral. J. Mineral. (in press).
O’Connor, B.H., Clarke, R.M., Kimpton, J.A., Allen, D.G. (2019): X-ray diffraction study of middlebackite [CuII2C2O4(OH)2, di-copper oxalate dihydroxide], using a mineral specimen from Mooloo Downs Station, Western Australia and chemically synthesized material. Powder Diffraction, 34(2), 1-14.
Italy
 
  • Trentino-Alto Adige
    • South Tirol
      • Aldino (Aldein)
        • Redagno (Radein)
          • Bletterbach Gorge
Ferretti, P., Campostrini, I., Demartin, F., Rocchetti, I. (2017): Nota preliminare sui minerali della Miniera del Taubenleck (Gola del Bletterbach, Aldino, BZ) - [Preliminary note about the minerals of the Taubenleck Mine (Bletterbach Gorge, BZ, Italy)]. Geo.Alp, 14, 25-33.
    • Trento Province (Trentino)
      • Carano
Demartin, F., Campostrini, I., Ferretti, P., and Rocchetti, I. (2018) Fiemmeite Cu2(C2O4)(OH)2∙2H2O, a new mineral from Val di Fiemme, Trentino, Italy. Minerals 2018, 8, 6, 248; doi:10.3390/min8060248; Ferretti, P., Campostrini, I., Dallabona, S., Demartin, F., and Rocchetti, I. (2019) La miniera di San Lugano (Carano, Val di Fiemme, TN). Rivista Mineralogica Italiana, 43, 2, 84-96.
 
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: 2020.4.8 20:47:19 Page generated: 2020.3.11 00:02:54
Go to top of page