The Archean Awsard massif comprises exclusively felsic syenites. It contains no mafic rocks and is not associated with carbonatites. The syenites belong to three main petrographic varieties: synnyrites (kalsilite syenites), nepheline syenites, and silica-saturated syenites.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List

28 valid minerals.

Detailed Mineral List:

ⓘ Aegirine

Formula: NaFe³⁺Si₂O₆

References:

Bea, F., Montero, P., Haissen, F., El Archi, A. (2013) 2.46Ga kalsilite and nepheline syenites from the Awsard pluton, Reguibat Rise of the West African Craton, Morocco. Generation of extremely K-rich magmas at the Archean–Proterozoic transition. Precambrian Research, 224. 242-254 doi:10.1016/j.precamres.2012.09.024

ⓘ Andradite

Formula: Ca₃Fe³⁺₂(SiO₄)₃

References:

ⓘ Andradite var. Melanite

Formula: Ca₃Fe³⁺₂(SiO₄)₃

References:

ⓘ 'Apatite'

Formula: Ca₅(PO₄)₃(Cl/F/OH)

References:

ⓘ Augite

Formula: (Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆

References:

ⓘ Baryte

Formula: BaSO₄

References:

ⓘ 'Biotite'

Formula: K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂

References:

ⓘ Calcite

Formula: CaCO₃

References:

ⓘ Cancrinite

Formula: (Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O

References:

ⓘ Celsian

Formula: Ba(Al₂Si₂O₈)

References:

ⓘ 'Cerite'

References:

ⓘ Cheralite

Formula: CaTh(PO₄)₂

References:

ⓘ Diopside

Formula: CaMgSi₂O₆

References:

ⓘ Kalsilite

Formula: KAlSiO₄

References:

ⓘ Keldyshite ?

Formula: (Na,H)₂ZrSi₂O₇

Description: Potassium rich variety.

References:

ⓘ Leucite

Formula: K(AlSi₂O₆)

References:

ⓘ Magnetite

Formula: Fe²⁺Fe³⁺₂O₄

References:

ⓘ Microcline

Formula: K(AlSi₃O₈)

References:

ⓘ Muscovite

Formula: KAl₂(AlSi₃O₁₀)(OH)₂

References:

ⓘ Nepheline

Formula: Na₃K(Al₄Si₄O₁₆)

References:

ⓘ Orthoclase

Formula: K(AlSi₃O₈)

References:

ⓘ Pectolite

Formula: NaCa₂Si₃O₈(OH)

References:

ⓘ Phlogopite

Formula: KMg₃(AlSi₃O₁₀)(OH)₂

References:

ⓘ Pollucite

Formula: (Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O

References:

ⓘ Potassic-magnesio-fluoro-arfvedsonite

Formula: [(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]

References:

ⓘ Pyrite

Formula: FeS₂

References:

ⓘ Sodalite

Formula: Na₄(Si₃Al₃)O₁₂Cl

References:

ⓘ Thorite

Formula: Th(SiO₄)

References:

ⓘ Titanite

Formula: CaTi(SiO₄)O

References:

ⓘ Vishnevite

Formula: (Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O

References:

ⓘ Witherite

Formula: BaCO₃

References:

ⓘ Zircon

Formula: Zr(SiO₄)

References:

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘ	Pyrite	2.EB.05a	FeS₂
Group 4 - Oxides and Hydroxides
ⓘ	Magnetite	4.BB.05	Fe²⁺Fe³⁺₂O₄
Group 5 - Nitrates and Carbonates
ⓘ	Calcite	5.AB.05	CaCO₃
ⓘ	Witherite	5.AB.15	BaCO₃
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘ	Baryte	7.AD.35	BaSO₄
Group 8 - Phosphates, Arsenates and Vanadates
ⓘ	Cheralite	8.AD.50	CaTh(PO₄)₂
Group 9 - Silicates
ⓘ	Andradite	9.AD.25	Ca₃Fe³⁺₂(SiO₄)₃
ⓘ	var. Melanite	9.AD.25	Ca₃Fe³⁺₂(SiO₄)₃
ⓘ	Thorite	9.AD.30	Th(SiO₄)
ⓘ	Zircon	9.AD.30	Zr(SiO₄)
ⓘ	Titanite	9.AG.15	CaTi(SiO₄)O
ⓘ	Keldyshite ?	9.BC.10	(Na,H)₂ZrSi₂O₇
ⓘ	Augite	9.DA.15	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
ⓘ	Diopside	9.DA.15	CaMgSi₂O₆
ⓘ	Aegirine	9.DA.25	NaFe³⁺Si₂O₆
ⓘ	Potassic-magnesio-fluoro-arfvedsonite	9.DE.25	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]
ⓘ	Pectolite	9.DG.05	NaCa₂Si₃O₈(OH)
ⓘ	Muscovite	9.EC.15	KAl₂(AlSi₃O₁₀)(OH)₂
ⓘ	Phlogopite	9.EC.20	KMg₃(AlSi₃O₁₀)(OH)₂
ⓘ	Kalsilite	9.FA.05	KAlSiO₄
ⓘ	Nepheline	9.FA.05	Na₃K(Al₄Si₄O₁₆)
ⓘ	Celsian	9.FA.30	Ba(Al₂Si₂O₈)
ⓘ	Microcline	9.FA.30	K(AlSi₃O₈)
ⓘ	Orthoclase	9.FA.30	K(AlSi₃O₈)
ⓘ	Cancrinite	9.FB.05	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
ⓘ	Vishnevite	9.FB.05	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
ⓘ	Sodalite	9.FB.10	Na₄(Si₃Al₃)O₁₂Cl
ⓘ	Leucite	9.GB.05	K(AlSi₂O₆)
ⓘ	Pollucite	9.GB.05	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
Unclassified
ⓘ	'Biotite'	-	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
ⓘ	'Cerite'	-
ⓘ	'Apatite'	-	Ca₅(PO₄)₃(Cl/F/OH)

List of minerals for each chemical element

H	Hydrogen
H	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
H	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
H	ⓘ Keldyshite	(Na,H)₂ZrSi₂O₇
H	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
H	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
H	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
H	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
H	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
H	ⓘ Potassic-magnesio-fluoro-arfvedsonite	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]
H	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
C	Carbon
C	ⓘ Calcite	CaCO₃
C	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
C	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
C	ⓘ Witherite	BaCO₃
O	Oxygen
O	ⓘ Aegirine	NaFe³⁺Si₂O₆
O	ⓘ Andradite	Ca₃Fe₂³⁺(SiO₄)₃
O	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
O	ⓘ Baryte	BaSO₄
O	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
O	ⓘ Calcite	CaCO₃
O	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
O	ⓘ Celsian	Ba(Al₂Si₂O₈)
O	ⓘ Diopside	CaMgSi₂O₆
O	ⓘ Kalsilite	KAlSiO₄
O	ⓘ Keldyshite	(Na,H)₂ZrSi₂O₇
O	ⓘ Leucite	K(AlSi₂O₆)
O	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
O	ⓘ Microcline	K(AlSi₃O₈)
O	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
O	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
O	ⓘ Orthoclase	K(AlSi₃O₈)
O	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
O	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
O	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
O	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
O	ⓘ Thorite	Th(SiO₄)
O	ⓘ Titanite	CaTi(SiO₄)O
O	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
O	ⓘ Witherite	BaCO₃
O	ⓘ Zircon	Zr(SiO₄)
O	ⓘ Cheralite	CaTh(PO₄)₂
O	ⓘ Andradite var. Melanite	Ca₃Fe₂³⁺(SiO₄)₃
O	ⓘ Potassic-magnesio-fluoro-arfvedsonite	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]
O	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
F	Fluorine
F	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
F	ⓘ Potassic-magnesio-fluoro-arfvedsonite	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]
F	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Na	Sodium
Na	ⓘ Aegirine	NaFe³⁺Si₂O₆
Na	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
Na	ⓘ Keldyshite	(Na,H)₂ZrSi₂O₇
Na	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Na	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
Na	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
Na	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
Na	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
Na	ⓘ Potassic-magnesio-fluoro-arfvedsonite	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]
Mg	Magnesium
Mg	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Mg	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Mg	ⓘ Diopside	CaMgSi₂O₆
Mg	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Mg	ⓘ Potassic-magnesio-fluoro-arfvedsonite	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]
Al	Aluminium
Al	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Al	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
Al	ⓘ Celsian	Ba(Al₂Si₂O₈)
Al	ⓘ Kalsilite	KAlSiO₄
Al	ⓘ Leucite	K(AlSi₂O₆)
Al	ⓘ Microcline	K(AlSi₃O₈)
Al	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Al	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Al	ⓘ Orthoclase	K(AlSi₃O₈)
Al	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Al	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
Al	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
Al	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
Si	Silicon
Si	ⓘ Aegirine	NaFe³⁺Si₂O₆
Si	ⓘ Andradite	Ca₃Fe₂³⁺(SiO₄)₃
Si	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Si	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Si	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
Si	ⓘ Celsian	Ba(Al₂Si₂O₈)
Si	ⓘ Diopside	CaMgSi₂O₆
Si	ⓘ Kalsilite	KAlSiO₄
Si	ⓘ Keldyshite	(Na,H)₂ZrSi₂O₇
Si	ⓘ Leucite	K(AlSi₂O₆)
Si	ⓘ Microcline	K(AlSi₃O₈)
Si	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
Si	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
Si	ⓘ Orthoclase	K(AlSi₃O₈)
Si	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
Si	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
Si	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
Si	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
Si	ⓘ Thorite	Th(SiO₄)
Si	ⓘ Titanite	CaTi(SiO₄)O
Si	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
Si	ⓘ Zircon	Zr(SiO₄)
Si	ⓘ Andradite var. Melanite	Ca₃Fe₂³⁺(SiO₄)₃
Si	ⓘ Potassic-magnesio-fluoro-arfvedsonite	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]
P	Phosphorus
P	ⓘ Cheralite	CaTh(PO₄)₂
P	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
S	Sulfur
S	ⓘ Baryte	BaSO₄
S	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
S	ⓘ Pyrite	FeS₂
S	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
Cl	Chlorine
Cl	ⓘ Sodalite	Na₄(Si₃Al₃)O₁₂Cl
Cl	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
K	Potassium
K	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
K	ⓘ Kalsilite	KAlSiO₄
K	ⓘ Leucite	K(AlSi₂O₆)
K	ⓘ Microcline	K(AlSi₃O₈)
K	ⓘ Muscovite	KAl₂(AlSi₃O₁₀)(OH)₂
K	ⓘ Nepheline	Na₃K(Al₄Si₄O₁₆)
K	ⓘ Orthoclase	K(AlSi₃O₈)
K	ⓘ Phlogopite	KMg₃(AlSi₃O₁₀)(OH)₂
K	ⓘ Vishnevite	(Na,K)₈(Al₆Si₆O₂₄)(SO₄,CO₃) · 2H₂O
K	ⓘ Potassic-magnesio-fluoro-arfvedsonite	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]
Ca	Calcium
Ca	ⓘ Andradite	Ca₃Fe₂³⁺(SiO₄)₃
Ca	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Ca	ⓘ Calcite	CaCO₃
Ca	ⓘ Cancrinite	(Na,Ca,◻)₈(Al₆Si₆O₂₄)(CO₃,SO₄)₂ · 2H₂O
Ca	ⓘ Diopside	CaMgSi₂O₆
Ca	ⓘ Pectolite	NaCa₂Si₃O₈(OH)
Ca	ⓘ Titanite	CaTi(SiO₄)O
Ca	ⓘ Cheralite	CaTh(PO₄)₂
Ca	ⓘ Andradite var. Melanite	Ca₃Fe₂³⁺(SiO₄)₃
Ca	ⓘ Apatite	Ca₅(PO₄)₃(Cl/F/OH)
Ti	Titanium
Ti	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Ti	ⓘ Titanite	CaTi(SiO₄)O
Fe	Iron
Fe	ⓘ Aegirine	NaFe³⁺Si₂O₆
Fe	ⓘ Andradite	Ca₃Fe₂³⁺(SiO₄)₃
Fe	ⓘ Augite	(Ca_xMg_yFe_z)(Mg_y1Fe_z1)Si₂O₆
Fe	ⓘ Biotite	K(Fe²⁺/Mg)₂(Al/Fe³⁺/Mg/Ti)([Si/Al/Fe]₂Si₂O₁₀)(OH/F)₂
Fe	ⓘ Magnetite	Fe²⁺Fe₂³⁺O₄
Fe	ⓘ Pyrite	FeS₂
Fe	ⓘ Andradite var. Melanite	Ca₃Fe₂³⁺(SiO₄)₃
Fe	ⓘ Potassic-magnesio-fluoro-arfvedsonite	[(K,Na)][Na₂][Mg₄Fe³⁺][Si₈O₂₂][(F,OH)₂]
Zr	Zirconium
Zr	ⓘ Keldyshite	(Na,H)₂ZrSi₂O₇
Zr	ⓘ Zircon	Zr(SiO₄)
Cs	Caesium
Cs	ⓘ Pollucite	(Cs,Na)₂(Al₂Si₄O₁₂) · 2H₂O
Ba	Barium
Ba	ⓘ Baryte	BaSO₄
Ba	ⓘ Celsian	Ba(Al₂Si₂O₈)
Ba	ⓘ Witherite	BaCO₃
Th	Thorium
Th	ⓘ Thorite	Th(SiO₄)
Th	ⓘ Cheralite	CaTh(PO₄)₂

Other Regions, Features and Areas containing this locality

AfricaContinent

Sahara DesertDesert

African PlateTectonic Plate

West African CratonCraton
- Reguibat RiseCraton

Northwest Africa MeteoritesGroup of Meteorite Fall Locations

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References

Bea, F., Montero, P., Haissen, F., Rjimati, E., Molina, J.F., Scarrow, J.H. (2014) Kalsilite-bearing plutonic rocks: The deep-seated Archean Awsard massif of the Reguibat Rise, South Morocco, West African Craton. Earth-Science Reviews, 138. 1-24 doi:10.1016/j.earscirev.2014.08.003

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