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Kaapsche Hoop (Kaapsehoop), Barberton, Ehlanzeni District, Mpumalanga, South Africai
Regional Level Types
Kaapsche Hoop (Kaapsehoop)- not defined -
Barberton- not defined -
Ehlanzeni DistrictDistrict
MpumalangaProvince
South AfricaCountry

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Key
Latitude & Longitude (WGS84):
25° 35' 27'' South , 30° 45' 57'' East
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Nelspruit110,159 (2013)24.3km
Barberton67,927 (2012)36.2km
White River15,954 (2012)37.9km


Stichtite occurs either as irregular to rounded masses, usually less than 1 cm across or as veinlets generally less than 1 mm wide within serpentinite.

It also coats joint surfaces or slip planes, resembling slickensides.

Stichtite-bearing veins invariably crosscut earlier parallel fiber seams of chrysotile, and within the veins, the orientation of fine stichtite fibers is always perpendicular to the length of the veins.

In some cases, veinlets or stringers of stichtite form a delicate network.

Stichtite specimens from the Kaapsehoop, South Africa, form radiating to irregular masses more than 30 cm across (commonly matted or contorted), and veins up to 2 cm wide are common. (From Ashwal and Cairncross, 1997).

Regions containing this locality

Somali Plate (Somalia Plate)Tectonic Plate
Transvaal, South AfricaProvince (Former)

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

10 valid minerals.

Detailed Mineral List:

Chromite
Formula: Fe2+Cr3+2O4
Reference: Rocks & Min.: 21:275.
Chrysotile
Formula: Mg3(Si2O5)(OH)4
Cobaltpentlandite
Formula: (Co,Ni,Fe)9S8
Reference: Minerals of South Africa
Godlevskite
Formula: (Ni,Fe)9S8
Reference: Minerals of South Africa
Heazlewoodite
Formula: Ni3S2
Reference: Minerals of South Africa
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Paul Meulenbeld collection
'Parachrysotile'
Reference: Minerals of South Africa
Pecoraite
Formula: Ni3(Si2O5)(OH)4
Reference: Minerals of South Africa
Pentlandite
Formula: (FexNiy)Σ9S8
Reference: Minerals of South Africa
Sphalerite
Formula: ZnS
Reference: Minerals of South Africa
Stichtite
Formula: Mg6Cr3+2(OH)16[CO3] · 4H2O
'Stichtite-2H'
Formula: Mg6(Cr,Al)2(CO3)(OH)16 · 4H2O
Reference: Rocks & Min.: 21:275.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Cobaltpentlandite2.BB.15(Co,Ni,Fe)9S8
Godlevskite2.BB.15(Ni,Fe)9S8
Heazlewoodite2.BB.05Ni3S2
Pentlandite2.BB.15(FexNiy)Σ9S8
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Magnetite4.BB.05Fe2+Fe3+2O4
Group 5 - Nitrates and Carbonates
Stichtite5.DA.50Mg6Cr3+2(OH)16[CO3] · 4H2O
'Stichtite-2H'5.DA.45Mg6(Cr,Al)2(CO3)(OH)16 · 4H2O
Group 9 - Silicates
Chrysotile9.ED.15Mg3(Si2O5)(OH)4
Pecoraite9.ED.15Ni3(Si2O5)(OH)4
Unclassified Minerals, Rocks, etc.
'Parachrysotile'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 3:2
Heazlewoodite2.5.3.1Ni3S2
AmBnXp, with (m+n):p = 9:8
Cobaltpentlandite2.7.1.3(Co,Ni,Fe)9S8
Godlevskite2.7.4.1(Ni,Fe)9S8
Pentlandite2.7.1.1(FexNiy)Σ9S8
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
Stichtite16b.6.2.2Mg6Cr3+2(OH)16[CO3] · 4H2O
'Stichtite-2H'16b.6.1.2Mg6(Cr,Al)2(CO3)(OH)16 · 4H2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 1:1 layers
Chrysotile71.1.5.1Mg3(Si2O5)(OH)4
Pecoraite71.1.2d.4Ni3(Si2O5)(OH)4
Unclassified Minerals, Mixtures, etc.
'Parachrysotile'-

List of minerals for each chemical element

HHydrogen
H StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
H Stichtite-2HMg6(Cr,Al)2(CO3)(OH)16 · 4H2O
H ChrysotileMg3(Si2O5)(OH)4
H PecoraiteNi3(Si2O5)(OH)4
CCarbon
C StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
C Stichtite-2HMg6(Cr,Al)2(CO3)(OH)16 · 4H2O
OOxygen
O StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
O Stichtite-2HMg6(Cr,Al)2(CO3)(OH)16 · 4H2O
O ChrysotileMg3(Si2O5)(OH)4
O ChromiteFe2+Cr23+O4
O PecoraiteNi3(Si2O5)(OH)4
O MagnetiteFe2+Fe23+O4
MgMagnesium
Mg StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
Mg Stichtite-2HMg6(Cr,Al)2(CO3)(OH)16 · 4H2O
Mg ChrysotileMg3(Si2O5)(OH)4
AlAluminium
Al Stichtite-2HMg6(Cr,Al)2(CO3)(OH)16 · 4H2O
SiSilicon
Si ChrysotileMg3(Si2O5)(OH)4
Si PecoraiteNi3(Si2O5)(OH)4
SSulfur
S HeazlewooditeNi3S2
S Pentlandite(FexNiy)Σ9S8
S Cobaltpentlandite(Co,Ni,Fe)9S8
S Godlevskite(Ni,Fe)9S8
S SphaleriteZnS
CrChromium
Cr StichtiteMg6Cr23+(OH)16[CO3] · 4H2O
Cr Stichtite-2HMg6(Cr,Al)2(CO3)(OH)16 · 4H2O
Cr ChromiteFe2+Cr23+O4
FeIron
Fe ChromiteFe2+Cr23+O4
Fe Pentlandite(FexNiy)Σ9S8
Fe Godlevskite(Ni,Fe)9S8
Fe MagnetiteFe2+Fe23+O4
CoCobalt
Co Cobaltpentlandite(Co,Ni,Fe)9S8
NiNickel
Ni HeazlewooditeNi3S2
Ni Pentlandite(FexNiy)Σ9S8
Ni Godlevskite(Ni,Fe)9S8
Ni PecoraiteNi3(Si2O5)(OH)4
ZnZinc
Zn SphaleriteZnS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Ashwal, L.D. and Cairncross, B. (1997) Mineralogy and origin of stichtite in chromite-bearing serpentinites. Contributions to Mineralogy and Petrology, 127, 75-86.

Localities in this Region


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