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:
Windham Co., Vermont, USA

mindat Locality ID: 17264
mindat URL: http://www.mindat.org/loc-17264.html

Tectonic Settings:

Total number of sublocalities beneath "Windham Co., Vermont, USA": 39
Total number of bottom-level sublocalities: 26

Number of Child Localities: 18
Child Localities:
Brattleboro
Dummerston
Grafton
Guilford
Londonderry
Marlboro
Newfane
Putney
Rockingham
Saxtons River Village
Town Of Athens
Townshend
Vernon
Wardsboro
Westminster
Whitingham
Wilmington
Windham

Latitude: 42°58'36"N
Longitude: 72°37'26"W
Decimal Degree (lat, lon): 42.976666666667,-72.623888888889

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.

Amorphous	Amphibole	Ancylite	Andalusite	Apatite	Aragonite	Baryte	Beryl	Brookite	Calcite
Chalcopyrite	Chlorite	Clay	Clinozoisite	Copper	Corundum	Diaspore	Epidote	Feldspar	Fluorite
Garnet	Gypsum	Halotrichite	Harmotome	Lanthanite	Malachite	Mica	None	Not in a structural group	Prehnite
Pyrite	Pyroxene	Quartz	Rocksalt	Rutile	Scapolite	Serpentine	Sphalerite	Spinel	Staurolite
Talc	Titanite	Tourmaline	Vivianite	Wavellite	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 As Au B Ba C Ca Ce Co Cr Cu F Fe H K La Mg Na O P Pb S Si Sr Ti Zn Zr

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

Structural Groups for minerals in this locality:
Amorphous Amphibole Ancylite Andalusite Apatite Aragonite Baryte Beryl Brookite Calcite
Chalcopyrite Chlorite Clay Clinozoisite Copper Corundum Diaspore Epidote Feldspar Fluorite
Garnet Gypsum Halotrichite Harmotome Lanthanite Malachite Mica None Not in a structural group Prehnite
Pyrite Pyroxene Quartz Rocksalt Rutile Scapolite Serpentine Sphalerite Spinel Staurolite
Talc Titanite Tourmaline Vivianite Wavellite Zircon

64 IMA Minerals at location:

Actinolite ()*	Albite ()*	Almandine ()*	Anatase ()*	Ancylite-(Ce) ()*
Andalusite ()*	Ankerite ()*	Antigorite ()*	Aragonite ()*	Baryte ()*
Brookite ()*	Calcite ()*	Cerussite ()*	Chalcopyrite ()*	Chromite ()*
Clinochlore ()*	Cordierite ()*	Cummingtonite ()*	Diopside ()*	Dolomite ()*
Epidote ()*	Erythrite ()*	Ferro-actinolite ()*	Fluorapatite ()*	Fluorite ()*
Galena ()*	Goethite ()*	Gold ()*	Gypsum ()*	Halotrichite ()*
Harmotome ()*	Hematite ()*	Hercynite ()*	Ilmenite ()*	Kyanite ()*
Lanthanite-(Ce) ()*	Lanthanite-(La) ()*	Lizardite ()*	Magnesite ()*	Magnetite ()*
Malachite ()*	Meionite ()*	Microcline ()*	Muscovite ()*	Opal ()*
Paragonite ()*	Phlogopite ()*	Prehnite ()*	Pyrite ()*	Pyrope ()*
Quartz ()*	Rutile ()*	Schorl ()*	Siderite ()*	Sillimanite ()*
Sphalerite ()*	Staurolite ()*	Synchysite-(Ce) ()*	Talc ()*	Titanite ()*
Tremolite ()*	Wavellite ()*	Zircon ()*	Zoisite ()*

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	6	279187,279191,279192,279204,279218,279219	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	4	279185,279190,279200,279219	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	2	279192,279200	2353
Anatase ()*	Not in a structural group	TiO₂	4	279196,279198,279216,279217	2162
Ancylite-(Ce) ()*	Ancylite	CeSr(CO₃)₂(OH)·H₂O	3	279196,279198,279200	92
Andalusite ()*	Andalusite	Al₂SiO₅	2	279199,279211	1310
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1	279221	3092
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	279193	708
Aragonite ()*	Aragonite	Ca(CO₃)	1	279220	3250
Baryte ()*	Baryte	Ba(SO₄)	1	279198	11547
Brookite ()*	Brookite	TiO₂	1	279198	700
Calcite ()*	Calcite	Ca(CO₃)	12	279185,279196,279198,279199,279200,279202,279204,279209,279216,279217,279218,279221	27770
Cerussite ()*	Aragonite	Pb(CO₃)	1	279200	4979
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	5	279196,279198,279200,279216,279217	27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	1	279192	3902
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	2	279219,279221	1756
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	0		1008
Cummingtonite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	0		327
Diopside ()*	Pyroxene	CaMgSi₂O₆	2	279202,279204	4135
Dolomite ()*	None	CaMg(CO₃)₂	7	279191,279192,279200,279205,279209,279218,279221	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	8	279185,279190,279202,279204,279205,279209,279214,279219	8173
Erythrite ()*	Vivianite	Co₃(AsO₄)₂·8H₂O	1	279193	814
Ferro-actinolite ()*	Amphibole	Ca₂(Mg_2.5-0.0Fe²⁺_2.5-5.0)Si₈O₂₂(OH)₂	1	279217	129
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	2	279185,279198	2740
Fluorite ()*	Fluorite	CaF₂	5	279196,279199,279200,279216,279217	9617
Galena ()*	Rocksalt	PbS	2	279206,279218	24243
Goethite ()*	Diaspore	FeO(OH)	1	279217	7437
Gold ()*	Copper	Au	3	279192,279194,279210	30554
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	4	279196,279198,279216,279217	6890
Halotrichite ()*	Halotrichite	Fe²⁺Al₂(SO₄)₄·22H₂O	1	279217	409
Harmotome ()*	Harmotome	Ba₂(Si₁₂Al₄)O₃₂·12H₂O	2	279196,279198	290
Hematite ()*	Corundum	Fe₂O₃	3	279188,279192,279196	14640
Hercynite ()*	Spinel	Fe²⁺Al₂O₄	1	279200	407
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	3	279190,279218,279219	5433
Kyanite ()*	Not in a structural group	Al₂OSiO₄	4	279186,279199,279200,279208	1507
Lanthanite-(Ce) ()*	Lanthanite	Ce₂(CO₃)₃·8H₂O	1	279196	16
Lanthanite-(La) ()*	Lanthanite	La₂(CO₃)₃·8H₂O	1	279198	10
Lizardite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	279200	359
Magnesite ()*	Calcite	Mg(CO₃)	1	279221	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	7	279190,279191,279192,279218,279219,279220,279221	14899
Malachite ()*	Malachite	Cu₂(CO₃)(OH)₂	1	279200	12537
Meionite ()*	Scapolite	Ca₄Al₆Si₆O₂₄(CO₃)	0		176
Microcline ()*	Feldspar	K(AlSi₃O₈)	3	279185,279200,279219	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	7	279185,279190,279192,279199,279200,279218,279219	17380
Opal ()*	Amorphous	SiO₂·nH₂O	1	279188	2994
Paragonite ()*	Mica Clay	NaAl₂(Si₃Al)O₁₀(OH)₂	2	279190,279219	247
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	3	279204,279218,279219	2273
Prehnite ()*	Prehnite	Ca₂Al(Si₃Al)O₁₀(OH)₂	4	279198,279199,279200,279211	1898
Pyrite ()*	Pyrite	FeS₂	11	279191,279196,279198,279200,279209,279211,279214,279216,279217,279218,279219	39462
Pyrope ()*	Garnet	Mg₃Al₂(SiO₄)₃	1	279192	341
Quartz ()*	Quartz	SiO₂	13	279185,279187,279188,279190,279193,279195,279196,279198,279200,279211,279215,279216,279219	61156
Rutile ()*	Rutile	TiO₂	6	279185,279188,279191,279192,279196,279218	5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	279188	2705
Siderite ()*	Calcite	Fe(CO₃)	1	279217	6417
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1	279200	1516
Sphalerite ()*	Sphalerite	ZnS	2	279196,279198	21482
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	4	279197,279199,279200,279215	978
Synchysite-(Ce) ()*	None	CaCe(CO₃)₂F	2	279198,279216	232
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	6	279187,279192,279205,279208,279215,279221	3337
Titanite ()*	Titanite	CaTi(SiO₄)O	6	279190,279198,279200,279216,279217,279219	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	2	279192,279199	2562
Wavellite ()*	Wavellite	Al₃(PO₄)₂(OH)₃·5H₂O	1	279199	374
Zircon ()*	Zircon	Zr(SiO₄)	3	279202,279214,279218	5251
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	4	279185,279196,279212,279215	1025

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
FKM-115	Hamm Mine (Vermont Talc Company Mine), Windham, Windham Co., Vermont, USA	https://www.rockptx.com/fkm-101-to-fkm-125/#FKM-115

All locality data graciously provided by mindat.org

All age data...