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:
Macomb, Macomb Township, St. Lawrence Co., New York, USA

mindat Locality ID: 20696
mindat URL: http://www.mindat.org/loc-20696.html

Tectonic Settings:

Total number of sublocalities beneath "Macomb, Macomb Township, St. Lawrence Co., New York, USA": 8
Total number of bottom-level sublocalities: 8

Number of Child Localities: 8
Child Localities:
Downing Farm
Ellis Farm
J.H. Donovan Mine
Lavack Mica Mine
Macomb Fluorite Mine (Rastley Road Fluorite Locality)
Rastley Road Pegmatite
Washburn Farm Chrome Tremolite Occurrence
Washburn Farm Copper Mine

Latitude: 44°25'20"N
Longitude: 75°31'11"W
Decimal Degree (lat, lon): 44.422222222222,-75.519722222222

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	Apatite	Calcite	Chalcopyrite	Clay	Diaspore	Feldspar	Fluorite	Mica	None
Quartz	Rocksalt	Sphalerite	Tourmaline

Albite ()*	Calcite ()*	Chalcopyrite ()*	Fluor-uvite ()*	Fluorapatite ()*
Fluorite ()*	Fluoro-tremolite ()*	Galena ()*	Goethite ()*	Graphite ()*
Phlogopite ()*	Quartz ()*	Schorl ()*	Sphalerite ()*	Tremolite ()*

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 Cu F Fe H K Mg Na O P Pb S Si Zn

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

Structural Groups for minerals in this locality:
Amphibole Apatite Calcite Chalcopyrite Clay Diaspore Feldspar Fluorite Mica None
Quartz Rocksalt Sphalerite Tourmaline

15 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1	248706	8803
Calcite ()*	Calcite	Ca(CO₃)	2	248709,248712	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	248712	27198
Fluor-uvite ()*	Tourmaline	CaMg₃(Al₅Mg)(Si₆O₁₈)(BO₃)₃(OH)₃F	0		19
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	2	248705,248706	2740
Fluorite ()*	Fluorite	CaF₂	1	248709	9617
Fluoro-tremolite ()*	Amphibole	Ca₂Mg₅Si₈O₂₂F₂	1	248711	8
Galena ()*	Rocksalt	PbS	2	248707,248709	24243
Goethite ()*	Diaspore	FeO(OH)	1	248709	7437
Graphite ()*	None	C	2	248706,248711	2812
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	2	248706,248708	2273
Quartz ()*	Quartz	SiO₂	1	248705	61156
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	248710	2705
Sphalerite ()*	Sphalerite	ZnS	1	248709	21482
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	2	248706,248708	2562

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
X050172	Macomb, Macomb Township, St. Lawrence Co., New York, USA	https://rruff.info/X050172

All locality data graciously provided by mindat.org

All age data...