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:
Calais, Washington Co., Maine, USA

Oldest recorded age at locality: 390.71
Youngest recorded age at locality: 378.71

mindat Locality ID: 22981
mindat URL: http://www.mindat.org/loc-22981.html

Tectonic Settings:

Total number of sublocalities beneath "Calais, Washington Co., Maine, USA": 5
Total number of bottom-level sublocalities: 5

Number of Child Localities: 5
Child Localities:
Beaver Lake Quarry
Bodwell Quarry
Gardners Lake Quarry
Red Beach
Route 1 Road Cut

Latitude: 45°7'24"N
Longitude: 67°8'51"W
Decimal Degree (lat, lon): 45.123333333333,-67.1475

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	Clinozoisite	Epidote	Feldspar	Fluorite	Mica	None	Not in a structural group	Prehnite
Pyrite	Quartz	Spinel	Talc	Titanite	Tourmaline	Zircon

Anatase ()*	Calcite ()*	Epidote ()*	Fluorite ()*	Laumontite ()*
Magnetite ()*	Microcline ()*	Muscovite ()*	Prehnite ()*	Pyrite ()*
Quartz ()*	Schorl ()*	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 C Ca F Fe H K Mg Na O S Si Ti Zr

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

Structural Groups for minerals in this locality:
Calcite Clay Clinozoisite Epidote Feldspar Fluorite Mica None Not in a structural group Prehnite
Pyrite Quartz Spinel Talc Titanite Tourmaline Zircon

15 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Anatase ()*	Not in a structural group	TiO₂	390.71	378.71	1	218120	2162
Calcite ()*	Calcite	Ca(CO₃)			2	218117,218118	27770
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)			1	218118	8173
Fluorite ()*	Fluorite	CaF₂			1	218118	9617
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	390.71	378.71	0		1271
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	390.71	378.71	1	218120	14899
Microcline ()*	Feldspar	K(AlSi₃O₈)	390.71	378.71	1	218120	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	390.71	378.71	2	218118,218120	17380
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂			1	218121	1898
Pyrite ()*	Pyrite	FeS₂			3	218117,218118,218119	39462
Quartz ()*	Quartz	SiO₂	390.71	378.71	3	218118,218120,218121	61156
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	390.71	378.71	1	218120	2705
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂			1	218118	3337
Titanite ()*	Titanite	CaTi(SiO₄)O			1	218119	4899
Zircon ()*	Zircon	Zr(SiO₄)	390.71	378.71	0		5251

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	MinDat Locality ID	Dated Locality (Max Age)	Reference	Reference ID
USGS-Rb-Sr-01853	390.71	378.71	384.71±6	Rb-Sr	age of intrusion	whole rock	205975	Red Beach, Calais, Washington Co., Maine, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-01855	390.71	378.71	384.71±6	Rb-Sr	age of intrusion	k-feldspar	205975	Red Beach, Calais, Washington Co., Maine, USA	USGS-Rb-Sr	USGS-Rb-Sr
USGS-Rb-Sr-01856	390.71	378.71	384.71±6	Rb-Sr	age of intrusion	plagioclase	205975	Red Beach, Calais, Washington Co., Maine, USA	USGS-Rb-Sr	USGS-Rb-Sr

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...