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:
Swampscott, Essex Co., Massachusetts, USA

mindat Locality ID: 32076
mindat URL: http://www.mindat.org/loc-32076.html

Tectonic Settings:

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

Number of Child Localities: 2
Child Localities:
Aggregate Industries Quarry (Lynn Sand And Stone Co. Quarry; Bardon Trimount Quarry; Hume Quarry)
Humphrey St. Quarry

Latitude: 42°28'59"N
Longitude: 70°54'54"W
Decimal Degree (lat, lon): 42.483055555556,-70.915

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.

Amphibole	Calcite	Chalcopyrite	Clinozoisite	Corundum	Epidote	Feldspar	Fluorite	Molybdenite	None
Not in a structural group	Prehnite	Pyrite	Quartz	Rocksalt	Rutile	Sphalerite	Spinel	Zircon

Actinolite ()*	Calcite ()*	Chalcopyrite ()*	Epidote ()*	Fluorite ()*
Galena ()*	Hematite ()*	Laumontite ()*	Magnetite ()*	Microcline ()*
Molybdenite ()*	Prehnite ()*	Pyrite ()*	Quartz ()*	Rutile ()*
Siderite ()*	Sphalerite ()*	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 C Ca Cu F Fe H K Mg Mo O Pb S Si Ti Zn Zr

Elements from minerals reported directly at this locality: O Ti

Structural Groups for minerals in this locality:
Amphibole Calcite Chalcopyrite Clinozoisite Corundum Epidote Feldspar Fluorite Molybdenite None
Not in a structural group Prehnite Pyrite Quartz Rocksalt Rutile Sphalerite Spinel Zircon

18 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	1	219405	3419
Calcite ()*	Calcite	Ca(CO₃)	1	219405	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	219405	27198
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	219405	8173
Fluorite ()*	Fluorite	CaF₂	1	219405	9617
Galena ()*	Rocksalt	PbS	1	219405	24243
Hematite ()*	Corundum	Fe₂O₃	1	219405	14640
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	1	219405	1271
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	219405	14899
Microcline ()*	Feldspar	K(AlSi₃O₈)	1	219405	4924
Molybdenite ()*	Molybdenite	MoS₂	1	219405	5800
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	1	219405	1898
Pyrite ()*	Pyrite	FeS₂	1	219405	39462
Quartz ()*	Quartz	SiO₂	1	219405	61156
Rutile ()*	Rutile	TiO₂	0		5614
Siderite ()*	Calcite	Fe(CO₃)	1	219405	6417
Sphalerite ()*	Sphalerite	ZnS	1	219405	21482
Zircon ()*	Zircon	Zr(SiO₄)	1	219405	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...