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:
Lecht Mines, Aberdeenshire, Scotland, UK

Oldest recorded age at locality: 750
Youngest recorded age at locality: 0

mindat Locality ID: 52786
mindat URL: http://www.mindat.org/loc-52786.html

Tectonic Settings:

Total number of sublocalities beneath "Lecht Mines, Aberdeenshire, Scotland, UK": 0
Total number of bottom-level sublocalities: 0

Latitude: 57°13'34"N
Longitude: 3°15'49"W
Decimal Degree (lat, lon): 57.226111111111,-3.2636111111111

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.

Coronadite	Humboldtine	None	Oxalate

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 H K Li Mn O

Elements from minerals reported directly at this locality: Al C H K Li Mn O

Structural Groups for minerals in this locality:
Coronadite Humboldtine None Oxalate

3 IMA Minerals at location:

Cryptomelane ()*	Lindbergite ()*	Lithiophorite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	# of localities containing mineral
Cryptomelane ()*	Coronadite	K(Mn⁴⁺₇Mn³⁺)O₁₆	750	599
Lindbergite ()*	Humboldtine Oxalate	Mn(C₂O₄)·2H₂O	0	12
Lithiophorite ()*	None	(Al,Li)(Mn⁴⁺,Mn³⁺)O₂(OH)₂	750	210

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_719	The deposit was formed by the weathering of the local Dalradian sequence. This yielded solutions rich in iron, manganese and other trace elements which subsequently ponded, producing a seepage-bog type ironstone. The permeable breccia acted as a channel-way for these supergene iron-manganese solutions.
Michelle_720	The Lecht Mine deposit was formed by the weathering of the local Dalradian sequence. Local oxalate crystallization is found as a result of lichen growth on primary minerals.

2 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
	Michelle_719	750	500	Dalradian		Age of host rock									52786	Lecht Mines, Aberdeenshire, Scotland, UK	Lecht Mines	Nicholson and Anderton (1989)	10.1017/S0263593300014437	EESTRSE80_143	Age of Dalradian rocks that host the supergene Lecht Mines
	Michelle_720	0	0	Recent		Age of oxalate mineralization	high						Lindbergite		52786	Lecht Mines, Aberdeenshire, Scotland, UK	Lecht Mines	Wilson and Jones (1983)	10.1144/GSL.SP.1983.011.01.01	GSLSP11_5	Recent lichen growth occurs on Fe-Mn ores

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...