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:
Red Knob Mine (Red Knob Prospect; Red Knob Claims), Muggins Mountains Uranium Prospects, Muggins District, Muggins Mts, Yuma Co., Arizona, USA

Oldest recorded age at locality: 23.2
Youngest recorded age at locality: 21.8

mindat Locality ID: 33629
mindat URL: http://www.mindat.org/loc-33629.html

Tectonic Settings:

Total number of sublocalities beneath "Red Knob Mine (Red Knob Prospect; Red Knob Claims), Muggins Mountains Uranium Prospects, Muggins District, Muggins Mts, Yuma Co., Arizona, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 32°44'30"N
Longitude: 114°12'"W
Decimal Degree (lat, lon): 32.741666666667,-114.2

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.

Amorphous	Apatite	Autunite	Calcite	Gypsum	None	Not in a structural group	Quartz	Scheelite

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 Cl Cu H K Mo O P Pb S Si U V

Elements from minerals reported directly at this locality: C Ca Cl Cu H K Mo O P Pb S Si U V

Structural Groups for minerals in this locality:
Amorphous Apatite Autunite Calcite Gypsum None Not in a structural group Quartz Scheelite

13 IMA Minerals at location:

Autunite ()*	Azurite ()*	Calcite ()*	Carnotite ()*	Cuprite ()*
Gypsum ()*	Opal ()*	Pyromorphite ()*	Quartz ()*	Uranophane-α ()*
Vanadinite ()*	Weeksite ()*	Wulfenite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	23.2	21.8	1272
Azurite ()*	Not in a structural group	Cu₃(CO₃)₂(OH)₂	23.2	21.8	5509
Calcite ()*	Calcite	Ca(CO₃)	23.2	21.8	27770
Carnotite ()*	None	K₂(UO₂)₂(VO₄)₂·3H₂O	23.2	21.8	1184
Cuprite ()*	Not in a structural group	Cu₂O	23.2	21.8	2970
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	23.2	21.8	6890
Opal ()*	Amorphous	SiO₂·nH₂O	23.2	21.8	2994
Pyromorphite ()*	Apatite	Pb₅(PO₄)₃Cl	23.2	21.8	1725
Quartz ()*	Quartz	SiO₂	23.2	21.8	61156
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	23.2	21.8	890
Vanadinite ()*	Apatite	Pb₅(VO₄)₃Cl	23.2	21.8	605
Weeksite ()*	None	(K)₂(UO₂)₂(Si₅O₁₃)·4H₂O	23.2	21.8	42
Wulfenite ()*	Scheelite	PbMoO₄	23.2	21.8	1655

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
	Giersdorf_00000402	23.2	21.8	22.5±0.7	K-Ar				UAKA-67-23		Yes				33582	Muggins District, Muggins Mts, Yuma Co., Arizona, USA	Muggins Mountains	Shafiqullah et al. (1980)		AGSD12_201

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...