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:
Black District, Yukon-Koyukuk Census Area, Alaska, USA

mindat Locality ID: 203155
mindat URL: http://www.mindat.org/loc-203155.html

Tectonic Settings:

Total number of sublocalities beneath "Black District, Yukon-Koyukuk Census Area, Alaska, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Midnight Hill; North Midnight Prospects
Snowy Peak Prospects
Unnamed Occurrence (ARDF - BR002; West Of Rice Gulch Creek)
Unnamed Occurrence (ARDF - BR003; Base Of Pink Bluff)
Unnamed Occurrence (ARDF - BR004; East-southeast Of Racquet Creek)

Latitude: 66°12'52"N
Longitude: 141°31'52"W
Decimal Degree (lat, lon): 66.214444444444,-141.53111111111

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.

Aragonite	Calcite	Chalcopyrite	Malachite	Molybdenite	None	Pyrite	Quartz	Rocksalt	Scheelite
Sphalerite

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: C Ca Cu Fe H Mo O Pb S Si W Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Aragonite Calcite Chalcopyrite Malachite Molybdenite None Pyrite Quartz Rocksalt Scheelite
Sphalerite

11 IMA Minerals at location:

Calcite ()*	Cerussite ()*	Chalcopyrite ()*	Galena ()*	Malachite ()*
Molybdenite ()*	Pyrite ()*	Quartz ()*	Scheelite ()*	Smithsonite ()*
Sphalerite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Calcite ()*	Calcite	Ca(CO₃)	1	134997	27770
Cerussite ()*	Aragonite	Pb(CO₃)	1	134994	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	134996	27198
Galena ()*	Rocksalt	PbS	1	134997	24243
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	134994	12537
Molybdenite ()*	Molybdenite	MoS₂	1	134998	5800
Pyrite ()*	Pyrite	FeS₂	1	134994	39462
Quartz ()*	Quartz	SiO₂	2	134994,134996	61156
Scheelite ()*	Scheelite	Ca(WO₄)	1	134998	4894
Smithsonite ()*	Calcite	Zn(CO₃)	1	134994	2473
Sphalerite ()*	Sphalerite	ZnS	2	134994,134997	21482

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...