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:
Guy Hill Pegmatite Area, Jefferson Co., Colorado, USA

mindat Locality ID: 6263
mindat URL: http://www.mindat.org/loc-6263.html

Tectonic Settings:

Total number of sublocalities beneath "Guy Hill Pegmatite Area, Jefferson Co., Colorado, USA": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Ohman Prospect

Latitude: 39°47'28"N
Longitude: 105°19'26"W
Decimal Degree (lat, lon): 39.791111111111,-105.32388888889

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.

Beryl	Bismutite	Clay	Clinozoisite	Epidote	Feldspar	Garnet	Mica	None	Not in a structural group
Olivine	Quartz	Rutile	Stibnite	Topaz	Tourmaline	Zircon

Beryl ()*	Bismuthinite ()*	Bismutite ()*	Chrysoberyl ()*	Epidote ()*
Microcline ()*	Muscovite ()*	Quartz ()*	Rutile ()*	Schorl ()*
Sillimanite ()*	Spessartine ()*	Topaz ()*	Xenotime-(Y) ()*	Zircon ()*

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 B Be Bi C Ca F Fe H K Mn Na O P S Si Ti Y Zr

Elements from minerals reported directly at this locality: Al B Be Bi C Ca F Fe H K Mn Na O S Si Ti Zr

Structural Groups for minerals in this locality:
Beryl Bismutite Clay Clinozoisite Epidote Feldspar Garnet Mica None Not in a structural group
Olivine Quartz Rutile Stibnite Topaz Tourmaline Zircon

15 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	0		4286
Bismuthinite ()*	Stibnite	Bi₂S₃	0		1935
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)	0		716
Chrysoberyl ()*	Olivine	BeAl₂O₄	0		321
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	0		8173
Microcline ()*	Feldspar	K(AlSi₃O₈)	0		4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	0		17380
Quartz ()*	Quartz	SiO₂	0		61156
Rutile ()*	Rutile	TiO₂	0		5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	0		2705
Sillimanite ()*	Not in a structural group	Al₂SiO₅	0		1516
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	0		1214
Topaz ()*	Topaz	Al₂SiO₄F₂	0		1476
Xenotime-(Y) ()*	Zircon	Y(PO₄)	1	190704	939
Zircon ()*	Zircon	Zr(SiO₄)	0		5251

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...