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The Mineral Quiz
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

Needlepoint Mtn, McDame area, Liard Mining Division, British Columbia, Canadai
Regional Level Types
Needlepoint MtnMountain
McDame areaArea
Liard Mining DivisionDivision
British ColumbiaProvince
CanadaCountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Latitude & Longitude (WGS84):
59° 8' 20'' North , 129° 46' 20'' West
Latitude & Longitude (decimal):
Locality type:


On the west side of Needlepoint Mountain, Lower Cambrian Atan Group impure limestone is altered to black magnetite-rich skarn in a zone about 90 metres long adjacent to granitic rocks of the Cassiar Stock.

The skarn is partly banded, with magnetite, chlorite, garnet, diopside, and irregular patches of quartz and fluorite. Danalite, a beryllium-iron silicate of the helvite group, occurs as small grains, clusters, and stringers up to 2 centimetres long. It is accompanied by a few small grains of native bismuth. Overall beryllium content of the occurrence is considerably less than one per cent (McDougall, 1954). Up to 0.038 per cent tin is reported from spectroscopic analysis. Mineralization also includes sphalerite and pyrrhotite.


Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


8 valid minerals.

Detailed Mineral List:

Bismuth
Formula: Bi
Description: As sparse small grains
Reference: Thompson, R.M. (1957) Danalite from British Columbia. The Canadian Mineralogist: 6(1): 68-71.
'Chlorite Group'
Reference: Thompson, R.M. (1957) Danalite from British Columbia. The Canadian Mineralogist: 6(1): 68-71.
Danalite
Formula: Be3Fe2+4(SiO4)3S
Habit: anhedral grains
Colour: orange brown to red brown
Description: as translucent cinnamon to reddish-brown anhedral grains up to 3 mm. in size
Reference: Thompson, R.M. (1957) Danalite from British Columbia. The Canadian Mineralogist: 6(1): 68-71.
Diopside
Formula: CaMgSi2O6
Reference: MINFILE No 104P 026
Fluorite
Formula: CaF2
Reference: Thompson, R.M. (1957) Danalite from British Columbia. The Canadian Mineralogist: 6(1): 68-71.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Thompson, R.M. (1957) Danalite from British Columbia. The Canadian Mineralogist: 6(1): 68-71.
Pyrrhotite
Formula: Fe1-xS
Reference: MINFILE No 104P 026
Quartz
Formula: SiO2
Reference: Thompson, R.M. (1957) Danalite from British Columbia. The Canadian Mineralogist: 6(1): 68-71.
Sphalerite
Formula: ZnS
Reference: MINFILE No 104P 026

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Bismuth1.CA.05Bi
Group 2 - Sulphides and Sulfosalts
Pyrrhotite2.CC.10Fe1-xS
Sphalerite2.CB.05aZnS
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Group 9 - Silicates
Danalite9.FB.10Be3Fe2+4(SiO4)3S
Diopside9.DA.15CaMgSi2O6
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Bismuth1.3.1.4Bi
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe1-xS
Sphalerite2.8.2.1ZnS
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Diopside65.1.3a.1CaMgSi2O6
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework Feldspathoids and related species
Danalite76.2.4.2Be3Fe2+4(SiO4)3S
Unclassified Minerals, Mixtures, etc.
'Chlorite Group'-

List of minerals for each chemical element

BeBeryllium
Be DanaliteBe3Fe42+(SiO4)3S
OOxygen
O DanaliteBe3Fe42+(SiO4)3S
O MagnetiteFe2+Fe23+O4
O DiopsideCaMgSi2O6
O QuartzSiO2
FFluorine
F FluoriteCaF2
MgMagnesium
Mg DiopsideCaMgSi2O6
SiSilicon
Si DanaliteBe3Fe42+(SiO4)3S
Si DiopsideCaMgSi2O6
Si QuartzSiO2
SSulfur
S DanaliteBe3Fe42+(SiO4)3S
S SphaleriteZnS
S PyrrhotiteFe1-xS
CaCalcium
Ca DiopsideCaMgSi2O6
Ca FluoriteCaF2
FeIron
Fe DanaliteBe3Fe42+(SiO4)3S
Fe MagnetiteFe2+Fe23+O4
Fe PyrrhotiteFe1-xS
ZnZinc
Zn SphaleriteZnS
BiBismuth
Bi BismuthBi

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Thompson, R. M. Danalite from British Columbia. Canadian Mineralogist; December 1957; v. 6; no. 1; p. 68-71

Other Regions, Features and Areas containing this locality

Canada
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
矿物 and/or 产地  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
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: 2020.10.26 16:01:33 Page generated: 2020.9.26 04:06:09
Go to top of page