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:
Williamstown, Berkshire Co., Massachusetts, USA

mindat Locality ID: 23888
mindat URL: http://www.mindat.org/loc-23888.html

Tectonic Settings:

Total number of sublocalities beneath "Williamstown, Berkshire Co., Massachusetts, USA": 9
Total number of bottom-level sublocalities: 9

Number of Child Localities: 9
Child Localities:
Blair Iron Mines
Brodie Mt. Lime-Marble Mine (Brodie Mt. Quarry)
Cobble Mountain "Gold" Mine
Hemlock Brook Lime-Marble Quarry
Hoosac River "Jasper" Locality
Hopper Brook Placer Gold Locality
Mt. Prospect Lime-Marble Mines (Mt. Prospect Quarries)
Roaring Brook Placer Gold Locality
Williamstown Galena Locality

Latitude: 42°42'43"N
Longitude: 73°12'15"W
Decimal Degree (lat, lon): 42.711944444444,-73.204166666667

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.

Calcite	Clay	Copper	Corundum	Diaspore	Garnet	Malachite	Mica	None	Pyrite
Quartz	Rocksalt

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 Au C Ca Cu Fe H K Mg O Pb S Si

Elements from minerals reported directly at this locality: C Cu H O

Structural Groups for minerals in this locality:
Calcite Clay Copper Corundum Diaspore Garnet Malachite Mica None Pyrite
Quartz Rocksalt

12 IMA Minerals at location:

Almandine ()*	Calcite ()*	Dolomite ()*	Galena ()*	Goethite ()*
Gold ()*	Hematite ()*	Malachite ()*	Muscovite ()*	Phlogopite ()*
Pyrite ()*	Quartz ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	2	219228,219230	2353
Calcite ()*	Calcite	Ca(CO₃)	3	219224,219226,219229	27770
Dolomite ()*	None	CaMg(CO₃)₂	1	219226	9895
Galena ()*	Rocksalt	PbS	1	219231	24243
Goethite ()*	Diaspore	FeO(OH)	1	219223	7437
Gold ()*	Copper	Au	2	219228,219230	30554
Hematite ()*	Corundum	Fe₂O₃	1	219223	14640
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	0		12537
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	5	219223,219224,219228,219229,219230	17380
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	219226	2273
Pyrite ()*	Pyrite	FeS₂	3	219224,219226,219229	39462
Quartz ()*	Quartz	SiO₂	5	219223,219224,219226,219227,219229	61156

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...