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Peridotite xenoliths, Olmani Cinder Cone (Olmani Hill), Kilimanjaro Region, Tanzaniai
Regional Level Types
Peridotite xenoliths- not defined -
Olmani Cinder Cone (Olmani Hill)- not defined -
Kilimanjaro RegionRegion
TanzaniaCountry

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Latitude & Longitude:
3° South , 37° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~120km
GRN:
S03E27
Mindat Locality ID:
69258
Long-form identifier:
mindat:1:2:69258:5
GUID (UUID V4):
0


Wehrlite, harzburgite and dunite xenoliths in ankaramite.
Interaction of ultrarefractory peridotite with magnesian carbonatite melts.
Located 10 kilometers East of Arusha.
Usagaran Province, Gregory Rift Valley.


Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ Chromite
Formula: Fe2+Cr3+2O4
ⓘ 'Clinopyroxene Subgroup'
Description: In wehrlite.
ⓘ Diopside
Formula: CaMgSi2O6
Description: In harzburgite.
ⓘ Diopside var. Chromium-bearing Diopside
Formula: Ca(Mg,Cr)Si2O6
Description: Low Al.
ⓘ Enstatite
Formula: Mg2Si2O6
Description: In harzburgite.
ⓘ Fluorapatite
Formula: Ca5(PO4)3F
Description: In wehrlite.
ⓘ Forsterite
Formula: Mg2SiO4
ⓘ 'Glass'
Description: P-rich glass.
ⓘ Monazite-(La)
Formula: La(PO4)
Description: 10 wt% ThO2, 25 wt% LaO. Inclusions in forsterite. In harzburgite.
ⓘ Spinel
Formula: MgAl2O4
Description: In harzburgite.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘSpinel4.BB.05MgAl2O4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘMonazite-(La)8.AD.50La(PO4)
ⓘFluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
ⓘForsterite9.AC.05Mg2SiO4
ⓘEnstatite9.DA.05Mg2Si2O6
ⓘDiopside
var. Chromium-bearing Diopside		9.DA.15Ca(Mg,Cr)Si2O6
ⓘ9.DA.15CaMgSi2O6
Unclassified
ⓘ'Clinopyroxene Subgroup'-
ⓘ'Glass'-

List of minerals for each chemical element

OOxygen
Oⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ DiopsideCaMgSi2O6
Oⓘ EnstatiteMg2Si2O6
Oⓘ FluorapatiteCa5(PO4)3F
Oⓘ ForsteriteMg2SiO4
Oⓘ Monazite-(La)La(PO4)
Oⓘ SpinelMgAl2O4
FFluorine
Fⓘ FluorapatiteCa5(PO4)3F
MgMagnesium
Mgⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ EnstatiteMg2Si2O6
Mgⓘ ForsteriteMg2SiO4
Mgⓘ SpinelMgAl2O4
AlAluminium
Alⓘ SpinelMgAl2O4
SiSilicon
Siⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Siⓘ DiopsideCaMgSi2O6
Siⓘ EnstatiteMg2Si2O6
Siⓘ ForsteriteMg2SiO4
PPhosphorus
Pⓘ FluorapatiteCa5(PO4)3F
Pⓘ Monazite-(La)La(PO4)
CaCalcium
Caⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Caⓘ DiopsideCaMgSi2O6
Caⓘ FluorapatiteCa5(PO4)3F
CrChromium
Crⓘ Diopside var. Chromium-bearing DiopsideCa(Mg,Cr)Si2O6
Crⓘ ChromiteFe2+Cr23+O4
FeIron
Feⓘ ChromiteFe2+Cr23+O4
LaLanthanum
Laⓘ Monazite-(La)La(PO4)

Other Regions, Features and Areas containing this locality

AfricaContinent
African Plate
Somali 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.

References

R.L. Rudnick et al. , Earth and Planetary Science Letters, 114, 1993, pp. 463-475.
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