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:
Greenfield, Franklin Co., Massachusetts, USA

mindat Locality ID: 146447
mindat URL: http://www.mindat.org/loc-146447.html

Tectonic Settings:

Total number of sublocalities beneath "Greenfield, Franklin Co., Massachusetts, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Greenfield Copper Mine
Hinsdale Brook Lazulite Locality

Latitude: 42°35'15"N
Longitude: 72°36'"W
Decimal Degree (lat, lon): 42.5875,-72.6

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.

Allophane	Baryte	Chalcopyrite	Clay	Lazulite	Malachite	Mica	None	Not in a structural group	Quartz
Spinel

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 Ba C Ca Cu Fe H K Mg O P S Si

Elements from minerals reported directly at this locality: Al Ca H O S Si

Structural Groups for minerals in this locality:
Allophane Baryte Chalcopyrite Clay Lazulite Malachite Mica None Not in a structural group Quartz
Spinel

10 IMA Minerals at location:

Allophane ()*	Anhydrite ()*	Baryte ()*	Chalcopyrite ()*	Lazulite ()*
Magnetite ()*	Malachite ()*	Muscovite ()*	Quartz ()*	Sillimanite ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Allophane ()*	Allophane	Al₂O₃(SiO₂)_1.3-2.0·2.5-3.0H₂O	0		470
Anhydrite ()*	Not in a structural group	Ca(SO₄)	0		1588
Baryte ()*	Baryte	Ba(SO₄)	1	219430	11547
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	219430	27198
Lazulite ()*	Lazulite	MgAl₂(PO₄)₂(OH)₂	1	219431	232
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	219431	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	219430	12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	219431	17380
Quartz ()*	Quartz	SiO₂	1	219431	61156
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1	219431	1516

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...