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:
Crandon Massive Sulfide Deposit (Little Sand Lake Deposit; Crandon Project; Exxon Deposit), Little Sand Lake, Ladysmith-Rhinelander Metavolcanic Complex, Forest Co., Wisconsin, USA

Oldest recorded age at locality: 1830
Youngest recorded age at locality: 1830

mindat Locality ID: 25693
mindat URL: http://www.mindat.org/loc-25693.html

Tectonic Settings: Continental Arc

Total number of sublocalities beneath "Crandon Massive Sulfide Deposit (Little Sand Lake Deposit; Crandon Project; Exxon Deposit), Little Sand Lake, Ladysmith-Rhinelander Metavolcanic Complex, Forest Co., Wisconsin, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 45°28'14"N
Longitude: 88°55'9"W
Decimal Degree (lat, lon): 45.470555555556,-88.919166666667

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.

Arsenopyrite	Calcite	Chalcopyrite	Clay	Clinozoisite	Copper	Corundum	Covellite	Diaspore	Digenite
Enargite	Epidote	Fluorite	Marcasite	Mica	Nickeline	None	Pyrite	Pyroxene	Quartz
Rocksalt	Sphalerite	Spinel	Wurtzite

Arsenopyrite ()*	Augite ()*	Bornite ()*	Calcite ()*	Chalcocite ()*
Chalcopyrite ()*	Clinozoisite ()*	Copper ()*	Covellite ()*	Digenite ()*
Dolomite ()*	Enargite ()*	Epidote ()*	Fluorite ()*	Galena ()*
Goethite ()*	Gold ()*	Graphite ()*	Hematite ()*	Magnetite ()*
Marcasite ()*	Muscovite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Silver ()*	Sphalerite ()*	Stephanite ()*

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: Ag Al As Au C Ca Cu F Fe H K Mg O Pb S Sb Si Zn

Elements from minerals reported directly at this locality: Ag Al As Au C Ca Cu F Fe H K Mg O Pb S Sb Si Zn

Structural Groups for minerals in this locality:
Arsenopyrite Calcite Chalcopyrite Clay Clinozoisite Copper Corundum Covellite Diaspore Digenite
Enargite Epidote Fluorite Marcasite Mica Nickeline None Pyrite Pyroxene Quartz
Rocksalt Sphalerite Spinel Wurtzite

28 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Arsenopyrite ()*	Arsenopyrite	FeAsS	1830	1830	9052
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1830	1830	2060
Bornite ()*	None	Cu₅FeS₄	1830	1830	5516
Calcite ()*	Calcite	Ca(CO₃)	1830	1830	27770
Chalcocite ()*	None	Cu₂S	1830	1830	5707
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1830	1830	27198
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	1830	1830	1025
Copper ()*	Copper	Cu	1830	1830	3846
Covellite ()*	Covellite	CuS	1830	1830	4165
Digenite ()*	Digenite	Cu_1.8S	1830	1830	1027
Dolomite ()*	None	CaMg(CO₃)₂	1830	1830	9895
Enargite ()*	Enargite Wurtzite	Cu₃AsS₄	1830	1830	910
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1830	1830	8173
Fluorite ()*	Fluorite	CaF₂	1830	1830	9617
Galena ()*	Rocksalt	PbS	1830	1830	24243
Goethite ()*	Diaspore	FeO(OH)	1830	1830	7437
Gold ()*	Copper	Au	1830	1830	30554
Graphite ()*	None	C	1830	1830	2812
Hematite ()*	Corundum	Fe₂O₃	1830	1830	14640
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1830	1830	14899
Marcasite ()*	Marcasite	FeS₂	1830	1830	5674
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1830	1830	17380
Pyrite ()*	Pyrite	FeS₂	1830	1830	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	1830	1830	9056
Quartz ()*	Quartz	SiO₂	1830	1830	61156
Silver ()*	Copper	Ag	1830	1830	5186
Sphalerite ()*	Sphalerite	ZnS	1830	1830	21482
Stephanite ()*	None	Ag₅SbS₄	1830	1830	586

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
	vms-01080	1830	1830	Proterozoic										S	25693	Crandon Massive Sulfide Deposit (Little Sand Lake Deposit; Crandon Project; Exxon Deposit), Little Sand Lake, Ladysmith-Rhinelander Metavolcanic Complex, Forest Co., Wisconsin, USA	Crandon	Moiser et al. (2009)		USGSOFR2009_1034

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...