Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Semenawi Keyih Bahri Region (Northern Red Sea Region), Eritrea

mindat Locality ID: 131848
mindat URL: http://www.mindat.org/loc-131848.html

Tectonic Settings:

Total number of sublocalities beneath "Semenawi Keyih Bahri Region (Northern Red Sea Region), Eritrea": 7
Total number of bottom-level sublocalities: 6

Number of Child Localities: 6
Child Localities:
Aleita
Alid Volcanic Center
Arafali
Dissei Island (Dissey Island)
Jebel Dule (Jebel Duhle; Gebel Dule)
Odmat (Mount Odmat)

Latitude: 15°18'19"N
Longitude: 39°45'20"E
Decimal Degree (lat, lon): 15.305277777778,39.755555555556

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Calcite	Chevkinite	Clay	Feldspar	Fluorite	Mica	Nickeline	None	Olivine	Pyroxene
Quartz	Spinel	Zircon

Annite ()*	Augite ()*	Calcite ()*	Chevkinite-(Ce) ()*	Diopside ()*
Fayalite ()*	Fluorite ()*	Hedenbergite ()*	Magnetite ()*	Phlogopite ()*
Pyrrhotite ()*	Quartz ()*	Sanidine ()*	Zircon ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al C Ca Ce F Fe H K Mg O S Si Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Chevkinite Clay Feldspar Fluorite Mica Nickeline None Olivine Pyroxene
Quartz Spinel Zircon

14 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Annite ()*	Mica Clay	KFe²⁺₃(AlSi₃O₁₀)(OH)₂	1	49439	356
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	4	49437,49439,49440,49443	2060
Calcite ()*	Calcite	Ca(CO₃)	1	49438	27770
Chevkinite-(Ce) ()*	Chevkinite	Ce₄(Ti,Fe²⁺,Fe³⁺)₅O₈(Si₂O₇)₂	1	49439	89
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	49439	4135
Fayalite ()*	Olivine	Fe²⁺₂(SiO₄)	1	49439	371
Fluorite ()*	Fluorite	CaF₂	1	49439	9617
Hedenbergite ()*	Pyroxene	CaFe²⁺Si₂O₆	1	49439	741
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	3	49437,49439,49440	14899
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	49439	2273
Pyrrhotite ()*	Nickeline	Fe₇S₈	1	49439	9056
Quartz ()*	Quartz	SiO₂	2	49439,49441	61156
Sanidine ()*	Feldspar	K(AlSi₃O₈)	4	49437,49439,49440,49443	598
Zircon ()*	Zircon	Zr(SiO₄)	1	49439	5251

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...