登录注册
Quick Links : Mindat手册The Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
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 ElementsThe Rock H. Currier Digital LibraryGeologic Time
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 MuseumsClubs & Organizations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Photography

Black Rock Mine, Black Rock, Joe Morolong Local Municipality, John Taolo Gaetsewe District Municipality, Northern Cape, South Africai
Regional Level Types
Black Rock MineMine
Black RockTown
Joe Morolong Local MunicipalityMunicipality
John Taolo Gaetsewe District MunicipalityDistrict Municipality
Northern CapeProvince
South AfricaCountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
Latitude & Longitude (WGS84):
27° 7' 59'' South , 22° 49' 59'' East
Latitude & Longitude (decimal):
Type:
Mindat Locality ID:
3065
Long-form identifier:
mindat:1:2:3065:9
GUID (UUID V4):
453f3c27-c4a8-4288-8ee9-b8dbe64c0931


A manganese property owned by Associated Manganese Mines of South Africa, Ltd.

Note: Contrary to the above, a 2015 article wrote that Assmang Proprietary Limited, the owner of the Black Rock Mine (itself jointly owned by Assore Limited and African Rainbow Mineral Limited) has begun a program in 2010 of increasing its operational capacity to 4.6 Mtpa through new and upgraded ore handling infrastructure and the refurbishment and development of new shafts. In 2022, it signed a purchase agreement with Atlas Copco to provide electric MT-420 mine trucks and ST-14 electric scooptrams. (Mindat Ref. ID 16653895)

Note: Sturmanite, an approved IMA mineral, is erroneously reported from this mine; whilst it is said to be the type locality, there must have been faulty labelling, as it has never been found since with the associated minerals as described in the original paper whereas at least 5 pockets at Wessels mine between 1978–1982 have yielded crystals of similar habit. No specimens have ever been recorded from this mine, and it was closed many years before. It is widely believed Black Rock is an erroneous locality and Wessels is the true locality. This has been checked against several references from Cairncross et al. and von Bezing (Debbie Woolf).

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


25 valid minerals. 1 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc. 1 erroneous literature entry.

Detailed Mineral List:

Aegirine
Formula: NaFe3+Si2O6
Description: Common in the Wessels-type ore
Andradite
Formula: Ca3Fe3+2(SiO4)3
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Habit: massive
Description: micromount specimens
Banalsite
Formula: Na2BaAl4Si4O16
Habit: massive
Description: micromount specimens
Baryte
Formula: BaSO4
Bixbyite-(Mn)
Formula: Mn3+2O3
Braunite
Formula: Mn2+Mn3+6(SiO4)O8
'Braunite-II' (FRL)
Formula: CaMn3+14(SiO4)O20
Type Locality:
Calcite
Formula: CaCO3
Description: Crystals very common up to cabinet size (SAMS datasheet ML 02).
Celestine
Formula: SrSO4
References:
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Cymrite
Formula: BaAl2Si2(O,OH)8 · H2O
Ettringite ?
Formula: Ca6Al2(SO4)3(OH)12 · 26H2O
References:
Gaudefroyite
Formula: Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3
Description: Erroneously reported by dealer to come from this mine, gaudefroyite has not been recorded here, datasheets and references from von Bezing and Cairncross et al and personal communitcations cross-checked by Debbie Woolf.
Gypsum
Formula: CaSO4 · 2H2O
Hausmannite
Formula: Mn2+Mn3+2O4
Hematite
Formula: Fe2O3
Inesite
Formula: Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O
References:
Lithiophorite
Formula: (Al,Li)MnO2(OH)2
Manganite
Formula: Mn3+O(OH)
References:
Marokite
Formula: CaMn3+2O4
Opal
Formula: SiO2 · nH2O
References:
Portlandite
Formula: Ca(OH)2
Pyrolusite
Formula: Mn4+O2
Quartz
Formula: SiO2
Quartz var. Chalcedony
Formula: SiO2
Rhodochrosite
Formula: MnCO3
Sturmanite ? (TL)
Formula: Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 · 25H2O
Type Locality:
Description: Although this locality is the type locality for the mineral, it is believed that the actual type locality is the Wessels mine due to an error in labeling the type specimen. No subsequent specimens containing sturmanite or other minerals on the type specimen have been found since, similar material from Wessels was found from 5 pockets in the years 1978-1982.
Xonotlite
Formula: Ca6(Si6O17)(OH)2
References:

Gallery:

Mn2+Mn3+2O4 Hausmannite

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Hausmannite4.BB.10Mn2+Mn3+2O4
Marokite4.BC.05CaMn3+2O4
Hematite4.CB.05Fe2O3
Bixbyite-(Mn)4.CB.10Mn3+2O3
Quartz
var. Chalcedony
4.DA.05SiO2
4.DA.05SiO2
Opal4.DA.10SiO2 · nH2O
Pyrolusite4.DB.05Mn4+O2
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Manganite4.FD.15Mn3+O(OH)
Portlandite4.FE.05Ca(OH)2
Lithiophorite4.FE.25(Al,Li)MnO2(OH)2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Rhodochrosite5.AB.05MnCO3
Group 6 - Borates
Gaudefroyite ?6.AB.60Ca4Mn3+2-3(BO3)3(CO3)(O,OH)3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Celestine7.AD.35SrSO4
Baryte7.AD.35BaSO4
Gypsum7.CD.40CaSO4 · 2H2O
Sturmanite ? (TL)7.DG.15Ca6Fe3+2(SO4)2.5[B(OH)4](OH)12 · 25H2O
Ettringite ?7.DG.15Ca6Al2(SO4)3(OH)12 · 26H2O
Group 9 - Silicates
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Braunite9.AG.05Mn2+Mn3+6(SiO4)O8
'Braunite-II' (TL)9.AG.05CaMn3+14(SiO4)O20
Aegirine9.DA.25NaFe3+Si2O6
Xonotlite9.DG.35Ca6(Si6O17)(OH)2
Inesite9.DL.05Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Cymrite9.EG.05BaAl2Si2(O,OH)8 · H2O
Banalsite9.FA.60Na2BaAl4Si4O16
Unclassified
'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
H CymriteBaAl2Si2(O,OH)8 · H2O
H EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
H GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
H GypsumCaSO4 · 2H2O
H InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
H Lithiophorite(Al,Li)MnO2(OH)2
H ManganiteMn3+O(OH)
H OpalSiO2 · nH2O
H PortlanditeCa(OH)2
H SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
H XonotliteCa6(Si6O17)(OH)2
H ApatiteCa5(PO4)3(Cl/F/OH)
LiLithium
Li Lithiophorite(Al,Li)MnO2(OH)2
BBoron
B GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
B SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
CCarbon
C CalciteCaCO3
C GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
C RhodochrositeMnCO3
OOxygen
O AegirineNaFe3+Si2O6
O AndraditeCa3Fe23+(SiO4)3
O BanalsiteNa2BaAl4Si4O16
O BaryteBaSO4
O Bixbyite-(Mn)Mn23+O3
O BrauniteMn2+Mn63+(SiO4)O8
O CalciteCaCO3
O CelestineSrSO4
O Quartz var. ChalcedonySiO2
O CryptomelaneK(Mn74+Mn3+)O16
O CymriteBaAl2Si2(O,OH)8 · H2O
O EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
O GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
O GypsumCaSO4 · 2H2O
O HausmanniteMn2+Mn23+O4
O HematiteFe2O3
O InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
O Lithiophorite(Al,Li)MnO2(OH)2
O ManganiteMn3+O(OH)
O MarokiteCaMn23+O4
O OpalSiO2 · nH2O
O PortlanditeCa(OH)2
O PyrolusiteMn4+O2
O QuartzSiO2
O RhodochrositeMnCO3
O SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
O XonotliteCa6(Si6O17)(OH)2
O Braunite-IICaMn143+(SiO4)O20
O ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
F ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Na AegirineNaFe3+Si2O6
Na BanalsiteNa2BaAl4Si4O16
AlAluminium
Al BanalsiteNa2BaAl4Si4O16
Al CymriteBaAl2Si2(O,OH)8 · H2O
Al EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
Al Lithiophorite(Al,Li)MnO2(OH)2
SiSilicon
Si AegirineNaFe3+Si2O6
Si AndraditeCa3Fe23+(SiO4)3
Si BanalsiteNa2BaAl4Si4O16
Si BrauniteMn2+Mn63+(SiO4)O8
Si Quartz var. ChalcedonySiO2
Si CymriteBaAl2Si2(O,OH)8 · H2O
Si InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Si OpalSiO2 · nH2O
Si QuartzSiO2
Si XonotliteCa6(Si6O17)(OH)2
Si Braunite-IICaMn143+(SiO4)O20
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S BaryteBaSO4
S CelestineSrSO4
S EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
S GypsumCaSO4 · 2H2O
S SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K CryptomelaneK(Mn74+Mn3+)O16
CaCalcium
Ca AndraditeCa3Fe23+(SiO4)3
Ca CalciteCaCO3
Ca EttringiteCa6Al2(SO4)3(OH)12 · 26H2O
Ca GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
Ca GypsumCaSO4 · 2H2O
Ca InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Ca MarokiteCaMn23+O4
Ca PortlanditeCa(OH)2
Ca SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
Ca XonotliteCa6(Si6O17)(OH)2
Ca Braunite-IICaMn143+(SiO4)O20
Ca ApatiteCa5(PO4)3(Cl/F/OH)
MnManganese
Mn Bixbyite-(Mn)Mn23+O3
Mn BrauniteMn2+Mn63+(SiO4)O8
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn GaudefroyiteCa4Mn3+2-3(BO3)3(CO3)(O,OH)3
Mn HausmanniteMn2+Mn23+O4
Mn InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Mn Lithiophorite(Al,Li)MnO2(OH)2
Mn ManganiteMn3+O(OH)
Mn MarokiteCaMn23+O4
Mn PyrolusiteMn4+O2
Mn RhodochrositeMnCO3
Mn Braunite-IICaMn143+(SiO4)O20
FeIron
Fe AegirineNaFe3+Si2O6
Fe AndraditeCa3Fe23+(SiO4)3
Fe HematiteFe2O3
Fe InesiteCa2(Mn,Fe)7Si10O28(OH)2 · 5H2O
Fe SturmaniteCa6Fe23+(SO4)2.5[B(OH)4](OH)12 · 25H2O
SrStrontium
Sr CelestineSrSO4
BaBarium
Ba BanalsiteNa2BaAl4Si4O16
Ba BaryteBaSO4
Ba CymriteBaAl2Si2(O,OH)8 · H2O

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Black_Rock_mine
Wikidata ID:Q16254905

Other Regions, Features and Areas containing this locality

Africa
African PlateTectonic Plate
South Africa

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.

References

 
矿物 and/or 产地  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
版权所有© mindat.org1993年至2024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 - Report a bug/vulnerability Current server date and time: 2024.3.29 14:21:28 Page updated: 2024.3.23 18:14:24
Go to top of page