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:
Tompkins Co., New York, USA

mindat Locality ID: 24366
mindat URL: http://www.mindat.org/loc-24366.html

Tectonic Settings:

Total number of sublocalities beneath "Tompkins Co., New York, USA": 7
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Ithaca
Lansing
Portland Point

Latitude: 42°29'52"N
Longitude: 76°29'34"W
Decimal Degree (lat, lon): 42.497777777778,-76.492777777778

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	Epsomite	Garnet	Melanterite	Mica	None	Not in a structural group	Perovskite	Pyroxene
Quartz	Rocksalt	Spinel

Alunogen ()*	Calcite ()*	Chromite ()*	Diopside ()*	Dolomite ()*
Epsomite ()*	Halite ()*	Hercynite ()*	Magnetite ()*	Melanterite ()*
Perovskite ()*	Phlogopite ()*	Pyrope ()*	Quartz ()*	Spinel ()*

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 C Ca Cl Cr Fe H K Mg Na O S Si Ti

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Clay Epsomite Garnet Melanterite Mica None Not in a structural group Perovskite Pyroxene
Quartz Rocksalt Spinel

15 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Alunogen ()*	Not in a structural group	Al₂(SO₄)₃(H₂O)₁₂·5H₂O	2	248857,248862	272
Calcite ()*	Calcite	Ca(CO₃)	2	248858,248863	27770
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	1	248857	3902
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	248858	4135
Dolomite ()*	None	CaMg(CO₃)₂	1	248863	9895
Epsomite ()*	Epsomite	Mg(SO₄)·7H₂O	1	248862	484
Halite ()*	Rocksalt	NaCl	2	248857,248861	1398
Hercynite ()*	Spinel	Fe²⁺Al₂O₄	1	248857	407
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	248858	14899
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	1	248862	915
Perovskite ()*	Perovskite	CaTiO₃	2	248857,248858	495
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	248858	2273
Pyrope ()*	Garnet	Mg₃Al₂(SiO₄)₃	2	248858,248863	341
Quartz ()*	Quartz	SiO₂	1	248863	61156
Spinel ()*	Spinel	MgAl₂O₄	1	248858	1934

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL
FKM-248	Portland Point Quarry, Portland Point, Tompkins Co., New York, USA	https://www.rockptx.com/fkm-226-to-fkm-250/#FKM-248

All locality data graciously provided by mindat.org

All age data...