SUPPORT US. If mindat.org is important to you, click here to donate to our Fall 2019 fundraiser!
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

Keutschite

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

About KeutschiteHide

02859590014946334883836.jpg
Dr. Frank Keutsch
Formula:
Cu2AgAsS4
Lustre:
Metallic
Crystal System:
Tetragonal
Member of:
Name:
Named for Dr. Frank Keutsch (b. 1971), professor of chemistry at Harvard University and specialist in sulphides and sulphosalts.
Can be considered a partially Ag-substituted luzonite.

Compare the chemically similar eckerite.


Classification of KeutschiteHide

Approved
Approval Year:
2014

Physical Properties of KeutschiteHide

Metallic
Transparency:
Opaque

Chemical Properties of KeutschiteHide

Formula:
Cu2AgAsS4

Crystallography of KeutschiteHide

Crystal System:
Tetragonal
Class (H-M):
4 2m - Scalenohedral
Space Group:
I4 2m
Setting:
I4 2m
Cell Parameters:
a = 5.5834(15) Å, c = 10.021(3) Å
Ratio:
a:c = 1 : 1.795
Unit Cell V:
312.40 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
2.79Å(ms)
1.966Å(s)
1.864Å(s)
1.659Å(s)
1.548Å(m)
1.270Å(m)
1.214Å(m)
Comments:
From Type Description.

Type Occurrence of KeutschiteHide

Place of Conservation of Type Material:
Type material is deposited in the reference collection of the Naturhistorisches Museum Wien, Wien, Austria, specimen number N9734

Synonyms of KeutschiteHide

Relationship of Keutschite to other SpeciesHide

Member of:
Other Members of this group:
BriartiteCu2(Fe,Zn)GeS4Tet.
ČernýiteCu2(Cd,Zn,Fe)SnS4Tet. 4 2m : I4 2m
FamatiniteCu3SbS4Tet. 4 2m : I4 2m
FerrokësteriteCu2FeSnS4Tet. 4 : I4
HocartiteAg2(Fe2+,Zn)SnS4Tet. 4 2m : I4 2m
IdaiteCu5FeS6Hex.
Kësterite Cu2ZnSnS4Tet. 4 : I4
KuramiteCu3SnS4Tet.
LuzoniteCu3AsS4Tet. 4 2m : I4 2m
OmariniiteCu8Fe2ZnGe2S12Orth. 2 2 2 : I2 2 2
PermingeatiteCu3SbSe4Tet.
Petrukite(Cu,Fe,Zn,Ag)3(Sn,In)S4Orth.
PirquitasiteAg2ZnSnS4Tet. 4 : I4
StanniteCu2FeSnS4Tet. 4 2m : I4 2m
StannoiditeCu+6Cu2+2(Fe2+,Zn)3Sn2S12Orth.
UM1984-30-S:CuFeSnCu2Fe2Sn3S7
Unnamed (Cu-Zn-In Sulphide)CuZn2InS4
VelikiteCu2HgSnS4Tet.
ZincobriartiteCu2(Zn,Fe)(Ge,Ga)S4Tet. 4 2m : I4 2m

Common AssociatesHide

Associated Minerals Based on Photo Data:
2 photos of Keutschite associated with ManganoquadratiteAgMnAsS3
2 photos of Keutschite associated with CalciteCaCO3
2 photos of Keutschite associated with AlabanditeMnS
1 photo of Keutschite associated with Bournonite-Seligmannite Series
1 photo of Keutschite associated with Tennantite-Tetrahedrite Series

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 KeutschiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Topa, D., Takagi Fredrickson, R. and Stanley, C. (2014) Keutschite, IMA 2014-038. CNMNC Newsletter No. 21, August 2014, page 804; Mineralogical Magazine, 78, 797-804.

Internet Links for KeutschiteHide

Localities for KeutschiteHide

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.
Germany
 
  • Baden-Württemberg
    • Freiburg
      • Ortenaukreis
        • Oberwolfach
Kolitsch, U., Bayerl, R. and Topa, D. (2019): Neufunde aus der Grube Clara im mittleren Schwarzwald (V). Mineralien-Welt 30 (3), 12-27 (in German).
Peru (TL)
 
  • Lima
    • Oyon Province
Topa, D., Takagi Fredrickson, R. and Stanley, C. (2014) Keutschite, IMA 2014-038. CNMNC Newsletter No. 21, August 2014, page 804; Mineralogical Magazine, 78, 797
 
矿物 and/or 产地  
版权所有© mindat.org1993年至2019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: 2019.12.9 18:09:43 Page generated: 2019.11.15 17:04:23
Go to top of page