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:
Texas, Baltimore Co., Maryland, USA

mindat Locality ID: 32368
mindat URL: http://www.mindat.org/loc-32368.html

Tectonic Settings:

Total number of sublocalities beneath "Texas, Baltimore Co., Maryland, USA": 2
Total number of bottom-level sublocalities: 2

Number of Child Localities: 2
Child Localities:
Burrough's Quarry
H.T. Campbell Quarry (Campbell Quarry)

Latitude: 39°28'0"N
Longitude: 76°39'4"W
Decimal Degree (lat, lon): 39.466666666667,-76.651111111111

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	Baryte	Calcite	Clay	Feldspar	Fluorite	Mica	Nickeline	None	Pyrite
Pyroxene	Quartz	Rocksalt	Rutile	Sphalerite	Talc	Titanite	Tourmaline	Wollastonite

Baryte ()*	Calcite ()*	Diopside ()*	Dolomite ()*	Dravite ()*
Fluorite ()*	Galena ()*	Graphite ()*	Margarite ()*	Microcline ()*
Muscovite ()*	Phlogopite ()*	Pyrite ()*	Pyrrhotite ()*	Quartz ()*
Rutile ()*	Sphalerite ()*	Talc ()*	Titanite ()*	Tremolite ()*
Wollastonite ()*

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 C Ca F Fe H K Mg Na O Pb S Si Ti Zn

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Baryte Calcite Clay Feldspar Fluorite Mica Nickeline None Pyrite
Pyroxene Quartz Rocksalt Rutile Sphalerite Talc Titanite Tourmaline Wollastonite

21 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Baryte ()*	Baryte	Ba(SO₄)	1	218550	11547
Calcite ()*	Calcite	Ca(CO₃)	1	218550	27770
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	218550	4135
Dolomite ()*	None	CaMg(CO₃)₂	1	218550	9895
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	1	218550	648
Fluorite ()*	Fluorite	CaF₂	1	218550	9617
Galena ()*	Rocksalt	PbS	1	218550	24243
Graphite ()*	None	C	1	218550	2812
Margarite ()*	Mica Clay	CaAl₂Si₂Al₂O₁₀(OH)₂	1	218550	168
Microcline ()*	Feldspar	K(AlSi₃O₈)	1	218550	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	218550	17380
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	218550	2273
Pyrite ()*	Pyrite	FeS₂	1	218550	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	1	218550	9056
Quartz ()*	Quartz	SiO₂	1	218550	61156
Rutile ()*	Rutile	TiO₂	1	218550	5614
Sphalerite ()*	Sphalerite	ZnS	1	218550	21482
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	218550	3337
Titanite ()*	Titanite	CaTi(SiO₄)O	1	218550	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	218550	2562
Wollastonite ()*	Wollastonite	CaSiO₃	1	218550	1247

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...