Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

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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:
Chester, Hampden Co., Massachusetts, USA

mindat Locality ID: 15138
mindat URL: http://www.mindat.org/loc-15138.html

Tectonic Settings:

Total number of sublocalities beneath "Chester, Hampden Co., Massachusetts, USA": 12
Total number of bottom-level sublocalities: 11

Number of Child Localities: 5
Child Localities:
Chester Emery Mines
Chester Granite Quarry (Hudson & Chester Granite Quarry)
Chester Mica Mine
Ilmenite Prospect
Round Top Hill Area Quartz Prospects

Latitude: 42°15'56"N
Longitude: 72°58'55"W
Decimal Degree (lat, lon): 42.265555555556,-72.981944444444

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	Aragonite	Beryl	Brookite	Calcite	Chalcopyrite	Chlorite	Chloritoid	Clay	Clinozoisite
Corundum	Cyanotrichite	Diaspore	Epidote	Feldspar	Garnet	Magnetoplumbite	Malachite	Mica	Molybdenite
None	Not in a structural group	Pyrite	Quartz	Rutile	Serpentine	Spinel	Talc	Titanite	Tourmaline
Zircon

Actinolite ()*	Albite ()*	Almandine ()*	Amesite ()*	Aragonite ()*
Beryl ()*	Bornite ()*	Brookite ()*	Calcite ()*	Carbonatecyanotrichite ()*
Chalcopyrite ()*	Chamosite ()*	Chloritoid ()*	Chromite ()*	Clinochlore ()*
Clinozoisite ()*	Cordierite ()*	Corundum ()*	Cummingtonite ()*	Diaoyudaoite ()*
Diaspore ()*	Dravite ()*	Epidote ()*	Ferro-hornblende ()*	Hematite ()*
Ilmenite ()*	Kyanite ()*	Magnesite ()*	Magnetite ()*	Malachite ()*
Margarite ()*	Microcline ()*	Molybdenite ()*	Muscovite ()*	Paragonite ()*
Pyrite ()*	Quartz ()*	Rutile ()*	Schorl ()*	Spinel ()*
Talc ()*	Titanite ()*	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 C Ca Cr Cu Fe H K Mg Mo Na O S Si Ti Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Aragonite Beryl Brookite Calcite Chalcopyrite Chlorite Chloritoid Clay Clinozoisite
Corundum Cyanotrichite Diaspore Epidote Feldspar Garnet Magnetoplumbite Malachite Mica Molybdenite
None Not in a structural group Pyrite Quartz Rutile Serpentine Spinel Talc Titanite Tourmaline
Zircon

43 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	7	219478,219480,219481,219482,219483,219484,219485	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	2	219478,219487	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	6	219478,219481,219482,219483,219487,219488	2353
Amesite ()*	Clay Serpentine	Mg₂Al(AlSiO₅)(OH)₄	6	219478,219481,219482,219483,219484,219485	74
Aragonite ()*	Aragonite	Ca(CO₃)	4	219478,219482,219483,219485	3250
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1	219487	4286
Bornite ()*	None	Cu₅FeS₄	1	219478	5516
Brookite ()*	Brookite	TiO₂	3	219478,219482,219485	700
Calcite ()*	Calcite	Ca(CO₃)	7	219478,219480,219481,219482,219483,219484,219485	27770
Carbonatecyanotrichite ()*	Cyanotrichite	Cu₄Al₂(CO₃)(OH)₁₂·2H₂O	3	219478,219482,219483	88
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	7	219478,219480,219481,219482,219483,219484,219485	27198
Chamosite ()*	Chlorite Clay	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈	1	219478	577
Chloritoid ()*	Chloritoid	Fe²⁺Al₂O(SiO₄)(OH)₂	7	219478,219480,219481,219482,219483,219484,219485	376
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	3	219478,219482,219483	3902
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	7	219478,219480,219481,219482,219483,219484,219485	1756
Clinozoisite ()*	Clinozoisite Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	3	219478,219482,219483	1025
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	1	219478	1008
Corundum ()*	Corundum	Al₂O₃	7	219478,219480,219481,219482,219483,219484,219485	1797
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	1	219478	327
Diaoyudaoite ()*	Magnetoplumbite	NaAl₁₁O₁₇	1	219479	7
Diaspore ()*	Diaspore	AlO(OH)	6	219478,219481,219482,219483,219484,219485	481
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	219478	648
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	6	219478,219481,219482,219483,219484,219485	8173
Ferro-hornblende ()*	Amphibole	Ca₂(Fe²⁺₄Al)(Si₇Al)O₂₂(OH)₂	5	219478,219480,219481,219482,219483	271
Hematite ()*	Corundum	Fe₂O₃	1	219478	14640
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	5	219478,219482,219483,219488,219489	5433
Kyanite ()*	Not in a structural group	Al₂OSiO₄	3	219478,219482,219483	1507
Magnesite ()*	Calcite	Mg(CO₃)	1	219478	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	7	219478,219480,219481,219482,219483,219484,219485	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	4	219478,219482,219483,219485	12537
Margarite ()*	Mica Clay	CaAl₂Si₂Al₂O₁₀(OH)₂	7	219478,219480,219481,219482,219483,219484,219485	168
Microcline ()*	Feldspar	K(AlSi₃O₈)	1	219487	4924
Molybdenite ()*	Molybdenite	MoS₂	1	219478	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	219487	17380
Paragonite ()*	Mica Clay	NaAl₂(Si₃Al)O₁₀(OH)₂	1	219484	247
Pyrite ()*	Pyrite	FeS₂	7	219478,219480,219481,219482,219483,219484,219485	39462
Quartz ()*	Quartz	SiO₂	9	219478,219480,219481,219482,219483,219484,219485,219487,219489	61156
Rutile ()*	Rutile	TiO₂	3	219478,219483,219485	5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	219487	2705
Spinel ()*	Spinel	MgAl₂O₄	1	219479	1934
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	7	219478,219480,219481,219482,219483,219484,219485	3337
Titanite ()*	Titanite	CaTi(SiO₄)O	4	219478,219482,219483,219485	4899
Zircon ()*	Zircon	Zr(SiO₄)	1	219487	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...