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:
Baltimore City, Maryland, USA

mindat Locality ID: 24057
mindat URL: http://www.mindat.org/loc-24057.html

Tectonic Settings:

Total number of sublocalities beneath "Baltimore City, Maryland, USA": 9
Total number of bottom-level sublocalities: 7

Number of Child Localities: 6
Child Localities:
Baltimore City Water Tunnel
Harris' Quarry
Jones Falls Quarries
Stony Run
William T. McKennar & Company Quarry
Woodberry Quarry

Latitude: 39°17'46"N
Longitude: 76°37'5"W
Decimal Degree (lat, lon): 39.296111111111,-76.618055555556

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.

Analcime	Apatite	Baryte	Beryl	Calcite	Chabazite	Chalcopyrite	Clay	Clinozoisite	Corundum
Epidote	Feldspar	Garnet	Gypsum	Harmotome	Heulandite	Marcasite	Melanterite	Mica	Molybdenite
Natrolite	None	Not in a structural group	Pyrite	Pyroxene	Quartz	Rocksalt	Rutile	Sphalerite	Spinel
Staurolite	Talc	Titanite	Tourmaline

Albite ()*	Almandine ()*	Analcime ()*	Anhydrite ()*	Ankerite ()*
Augite ()*	Baryte ()*	Beryl ()*	Cacoxenite ()*	Calcite ()*
Chabazite-Ca ()*	Chalcopyrite ()*	Epidote ()*	Fluorapatite ()*	Galena ()*
Gypsum ()*	Harmotome ()*	Hematite ()*	Heulandite-Ca ()*	Ilmenite ()*
Laumontite ()*	Magnetite ()*	Marcasite ()*	Melanterite ()*	Microcline ()*
Molybdenite ()*	Muscovite ()*	Natrolite ()*	Pyrite ()*	Quartz ()*
Rutile ()*	Schorl ()*	Siderite ()*	Sphalerite ()*	Staurolite ()*
Talc ()*	Titanite ()*	Zoisite ()*

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 Ba Be C Ca Cu F Fe H K Mg Mo Na O P Pb S Si Ti Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Analcime Apatite Baryte Beryl Calcite Chabazite Chalcopyrite Clay Clinozoisite Corundum
Epidote Feldspar Garnet Gypsum Harmotome Heulandite Marcasite Melanterite Mica Molybdenite
Natrolite None Not in a structural group Pyrite Pyroxene Quartz Rocksalt Rutile Sphalerite Spinel
Staurolite Talc Titanite Tourmaline

38 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)	2	218388,218391	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	2	218388,218391	2353
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	2	218386,218393	1627
Anhydrite ()*	Not in a structural group	Ca(SO₄)	1	218393	1588
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	1	218388	3092
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1	218393	2060
Baryte ()*	Baryte	Ba(SO₄)	1	218388	11547
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1	218391	4286
Cacoxenite ()*	None	Fe³⁺₂₄AlO₆(PO₄)₁₇(OH)₁₂·75H₂O	1	218388	280
Calcite ()*	Calcite	Ca(CO₃)	3	218386,218388,218393	27770
Chabazite-Ca ()*	Chabazite	Ca₂[Al₄Si₈O₂₄]·13H₂O	1	218388	310
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	2	218388,218389	27198
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	3	218388,218391,218393	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1	218388	2740
Galena ()*	Rocksalt	PbS	1	218388	24243
Gypsum ()*	Gypsum	Ca(SO₄)·2H₂O	1	218388	6890
Harmotome ()*	Harmotome	Ba₂(Si₁₂Al₄)O₃₂·12H₂O	1	218388	290
Hematite ()*	Corundum	Fe₂O₃	1	218388	14640
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O	1	218388	246
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	2	218388,218393	5433
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	2	218388,218393	1271
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	218388	14899
Marcasite ()*	Marcasite	FeS₂	2	218388,218393	5674
Melanterite ()*	Melanterite	Fe(SO₄)·7H₂O	1	218388	915
Microcline ()*	Feldspar	K(AlSi₃O₈)	2	218388,218389	4924
Molybdenite ()*	Molybdenite	MoS₂	1	218388	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2	218388,218389	17380
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O	1	218393	1236
Pyrite ()*	Pyrite	FeS₂	3	218388,218391,218393	39462
Quartz ()*	Quartz	SiO₂	3	218388,218391,218393	61156
Rutile ()*	Rutile	TiO₂	1	218388	5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	2	218388,218393	2705
Siderite ()*	Calcite	Fe(CO₃)	2	218387,218388	6417
Sphalerite ()*	Sphalerite	ZnS	1	218388	21482
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	1	218388	978
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	218391	3337
Titanite ()*	Titanite	CaTi(SiO₄)O	1	218388	4899
Zoisite ()*	Epidote	Ca₂Al₃[Si₂O₇][SiO₄]O(OH)	2	218391,218393	1025

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...