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Lattice quartz occurrence ('Gitterquarz-Fundstelle'), Karibib, Erongo Region, Namibia

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude: 22° South , 15° East (est.)
Margin of Error:~107km
Locality type:Occurrence


Occurrence of unusual quartz crystals with a lattice-like arrangement caused by epitactic intergrowth with feldspar.
The exact locality is not known, but the occurrence is said to be at the border between the Erongorus 166 farm and the Bergsig 167 farm (and not, as given by local prospectors, the Davib Ost farm).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


12 valid minerals.

Detailed Mineral List:

Eylettersite
Formula: Th0.75Al3(PO4)2(OH)6
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Fluorite
Formula: CaF2
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Goyazite
Formula: SrAl3(PO4)(PO3OH)(OH)6
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Hematite
Formula: Fe2O3
Reference: Egil Hollund Collection
'K Feldspar'
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Egil Hollund Collection
Metatorbernite
Formula: Cu(UO2)2(PO4)2 · 8H2O
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Opal
Formula: SiO2 · nH2O
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Opal var: Opal-AN
Formula: SiO2 · nH2O
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Orthoclase
Formula: K(AlSi3O8)
Reference: Egil Hollund Collection
Phosphuranylite
Formula: (H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Phurcalite
Formula: Ca2(UO2)3(PO4)2O2 · 7H2O
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Quartz
Formula: SiO2
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Todorokite
Formula: (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.
Uranophane-β
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Hematite'4.CB.05Fe2O3
'Opal'4.DA.10SiO2 · nH2O
var: Opal-AN4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
Todorokite4.DK.10(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Group 8 - Phosphates, Arsenates and Vanadates
'Eylettersite'8.BL.10Th0.75Al3(PO4)2(OH)6
'Goyazite'8.BL.10SrAl3(PO4)(PO3OH)(OH)6
'Metatorbernite'8.EB.10Cu(UO2)2(PO4)2 · 8H2O
Phosphuranylite8.EC.10(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Phurcalite8.EC.35Ca2(UO2)3(PO4)2O2 · 7H2O
Group 9 - Silicates
Orthoclase9.FA.30K(AlSi3O8)
Uranophane-β9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Unclassified Minerals, Rocks, etc.
'K Feldspar'-
'Limonite'-(Fe,O,OH,H2O)
Tourmaline-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB3X7
Todorokite7.8.1.1(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Metatorbernite40.2a.13.2Cu(UO2)2(PO4)2 · 8H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Eylettersite41.5.12.2Th0.75Al3(PO4)2(OH)6
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)5(XO4)2Zq·xH2O
Phosphuranylite42.4.8.1(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Phurcalite42.4.7.1Ca2(UO2)3(PO4)2O2 · 7H2O
(AB)2(XO4)Zq·xH2O
Goyazite42.7.3.3SrAl3(PO4)(PO3OH)(OH)6
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Uranophane-β53.3.1.9Ca(UO2)2(SiO3OH)2 · 5H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'K Feldspar'-
'Limonite'-(Fe,O,OH,H2O)
Opal
var: Opal-AN
-SiO2 · nH2O
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H EylettersiteTh0.75Al3(PO4)2(OH)6
H GoyaziteSrAl3(PO4)(PO3OH)(OH)6
H Limonite(Fe,O,OH,H2O)
H MetatorberniteCu(UO2)2(PO4)2 · 8H2O
H OpalSiO2 · nH2O
H Opal (var: Opal-AN)SiO2 · nH2O
H Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
H PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2O
H Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
H Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
OOxygen
O EylettersiteTh0.75Al3(PO4)2(OH)6
O GoyaziteSrAl3(PO4)(PO3OH)(OH)6
O HematiteFe2O3
O Limonite(Fe,O,OH,H2O)
O MetatorberniteCu(UO2)2(PO4)2 · 8H2O
O OpalSiO2 · nH2O
O Opal (var: Opal-AN)SiO2 · nH2O
O OrthoclaseK(AlSi3O8)
O Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
O PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2O
O QuartzSiO2
O Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
FFluorine
F FluoriteCaF2
NaSodium
Na Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
MgMagnesium
Mg Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
AlAluminium
Al EylettersiteTh0.75Al3(PO4)2(OH)6
Al GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Al OrthoclaseK(AlSi3O8)
Al Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
SiSilicon
Si OpalSiO2 · nH2O
Si Opal (var: Opal-AN)SiO2 · nH2O
Si OrthoclaseK(AlSi3O8)
Si QuartzSiO2
Si Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
PPhosphorus
P EylettersiteTh0.75Al3(PO4)2(OH)6
P GoyaziteSrAl3(PO4)(PO3OH)(OH)6
P MetatorberniteCu(UO2)2(PO4)2 · 8H2O
P Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
P PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2O
KPotassium
K OrthoclaseK(AlSi3O8)
K Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
K Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
CaCalcium
Ca FluoriteCaF2
Ca Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
Ca PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2O
Ca Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
Ca Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
MnManganese
Mn Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
FeIron
Fe HematiteFe2O3
Fe Limonite(Fe,O,OH,H2O)
CuCopper
Cu MetatorberniteCu(UO2)2(PO4)2 · 8H2O
SrStrontium
Sr GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Sr Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
BaBarium
Ba Todorokite(Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12 · 3-4H2O
ThThorium
Th EylettersiteTh0.75Al3(PO4)2(OH)6
UUranium
U MetatorberniteCu(UO2)2(PO4)2 · 8H2O
U Phosphuranylite(H3O)3KCa(UO2)7(PO4)4O4 · 8H2O
U PhurcaliteCa2(UO2)3(PO4)2O2 · 7H2O
U Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
- E. Schnaitmann, F. Brandstätter, U. Kolitsch and G. Niedermayr (2008): Die „Gitterquarz“-Paragenese aus dem Erongo, Namibia. Mineralien-Welt 20 (1), 55-63.


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