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

Roepperite (of Brush)

This page is currently not sponsored. Click here to sponsor this page.
Formula:
(Fe2+2,Mn,Zn)SiO4
Colour:
Black, greenish black, rarely dark yellow green
Lustre:
Sub-Vitreous, Resinous, Greasy, Dull
Hardness:
5½ - 6
Specific Gravity:
3.95 - 4.08
Member of:
Name:
Named in 1872 by George J. Brush in honor of William Theodore Roepper [March 7, 1810 Peilau, Lower Silesia, Germany [now Poland] - March 11, 1880 Bethlehem, Pennsylvania, USA] professor of mineralogy and geology and curator of mineralogy at Lehigh University, Bethlehem, Pennsylvania, USA, noted researcher of Franklin-Ogdensburg, New Jersey minerals and who first described the species. Roepper also discovered the zinc deposits in the Saucon Valley of Pennsylvania.
A variety of Fayalite

A manganoan, zincian fayalite. Black slightly rounded to very rounded crystals, also black cleavages


Hide all sections | Show all sections

Physical Properties of Roepperite (of Brush)Hide

Sub-Vitreous, Resinous, Greasy, Dull
Transparency:
Translucent, Opaque
Colour:
Black, greenish black, rarely dark yellow green
Hardness:
5½ - 6 on Mohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Very Good
{010}
Density:
3.95 - 4.08 g/cm3 (Measured)    

Chemical Properties of Roepperite (of Brush)Hide

Formula:
(Fe2+2,Mn,Zn)SiO4

Relationship of Roepperite (of Brush) to other SpeciesHide

Member of:
Other Members of this group:
Calcio-olivineCa2SiO4Orth. mmm (2/m 2/m 2/m)
FayaliteFe2+2SiO4Orth. mmm (2/m 2/m 2/m)
ForsteriteMg2SiO4Orth. mmm (2/m 2/m 2/m)
GlaucochroiteCaMn2+SiO4Orth. mmm (2/m 2/m 2/m)
KirschsteiniteCaFe2+SiO4Orth. mmm (2/m 2/m 2/m) : Pnma
Laihunite(Fe2+0.50.5)Fe3+[SiO4]Mon.
LarniteCa2SiO4Mon. 2/m
LiebenbergiteNi2SiO4Orth. mmm (2/m 2/m 2/m)
MonticelliteCaMgSiO4Orth.
TephroiteMn2+2SiO4Orth. mmm (2/m 2/m 2/m)

Fluorescence of Roepperite (of Brush)Hide

Not fluorescent in UV

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 Roepperite (of Brush)Hide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Roepper, William Theodore, 1870, Notice of Some Minerals from New Jersey, American Journal of Science, second series, v. 50, p. 35-38.
Brush, George Jarvis, 1872, Roepperite, System of Mineralogy, fifth edition,Appendix I, p. 13.
Brush, George Jarvis, 1872, Stirlingite, Roepperite, American Journal of Science, third series, v4, p. 146.

Internet Links for Roepperite (of Brush)Hide

Localities for Roepperite (of Brush)Hide

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.
USA
 
  • New Jersey
    • Sussex County
      • Franklin Mining District
        • Franklin
Dana, Edward S. (1892) System of Mineralogy
        • Ogdensburg
          • Sterling Hill
Dana, Edward S., (1892) System of Mineralogy
 
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: 2020.9.21 17:53:44 Page generated: 2020.8.26 10:13:18
Go to top of page