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:
Longido, Arusha Region, Tanzania

Oldest recorded age at locality: 610.6
Youngest recorded age at locality: 609.4

mindat Locality ID: 105821
mindat URL: http://www.mindat.org/loc-105821.html

Tectonic Settings:

Total number of sublocalities beneath "Longido, Arusha Region, Tanzania": 2
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Muriatata Hills

Latitude: 2°40'57"S
Longitude: 36°43'38"E
Decimal Degree (lat, lon): -2.6825,36.727222222222

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.

Amphibole	Calcite	Clay	Corundum	Epidote	Feldspar	Garnet	Mica	None	Pyroxene
Spinel

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 Fe H K Mg Na O Si

Elements from minerals reported directly at this locality: Al Ca H K Mg O Si

Structural Groups for minerals in this locality:
Amphibole Calcite Clay Corundum Epidote Feldspar Garnet Mica None Pyroxene
Spinel

10 IMA Minerals at location:

Anorthite ()*	Calcite ()*	Corundum ()*	Hercynite ()*	Magnesite ()*
Omphacite ()*	Pargasite ()*	Phlogopite ()*	Pyrope ()*	Zoisite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Anorthite ()*	Feldspar	Ca(Al₂Si₂O₈)	610.6	609.4	0		1036
Calcite ()*	Calcite	Ca(CO₃)	610.6	609.4	1	115645	27770
Corundum ()*	Corundum	Al₂O₃	610.6	609.4	1	115645	1797
Hercynite ()*	Spinel	Fe²⁺Al₂O₄	610.6	609.4	1	115645	407
Magnesite ()*	Calcite	Mg(CO₃)	610.6	609.4	1	115645	1487
Omphacite ()*	Pyroxene	(Ca,Na)(Mg,Fe,Al)Si₂O₆	610.6	609.4	1	115645	229
Pargasite ()*	Amphibole	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	610.6	609.4	1	115645	313
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	610.6	609.4	0		2273
Pyrope ()*	Garnet	Mg₃Al₂(SiO₄)₃	610.6	609.4	1	115645	341
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	610.6	609.4	1	115645	1025

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Jen_0001538	610.6	609.4	610 ± 0.6	U-Pb	age of formation of protolith ruby		zircon				Zircon			211915	Ruby Occurrence, Muriatata Hills, Longido, Arusha Region, Tanzania	Longido Ruby Occurence	Giuliani et al. (2007)		GOGD37_23

Sample	Source Locality	Reference URL
FKM-68	Longido, Arusha Region, Tanzania	https://www.rockptx.com/fkm-51-to-fkm-75/#FKM-68

All locality data graciously provided by mindat.org

All age data...