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:
Leavitt Quarry, Leominster, Worcester Co., Massachusetts, USA

Oldest recorded age at locality: 253
Youngest recorded age at locality: 227

mindat Locality ID: 60895
mindat URL: http://www.mindat.org/loc-60895.html

Tectonic Settings:

Total number of sublocalities beneath "Leavitt Quarry, Leominster, Worcester Co., Massachusetts, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Apatite	Clay	Corundum	Mica	None	Pyrite	Quartz	Titanite	Tourmaline	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 B Ca F Fe H K Na O P S Si Ti Zr

Elements from minerals reported directly at this locality: Al B Ca F Fe H K Na O P S Si Ti Zr

Structural Groups for minerals in this locality:
Apatite Clay Corundum Mica None Pyrite Quartz Titanite Tourmaline Zircon

8 IMA Minerals at location:

Fluorapatite ()*	Ilmenite ()*	Muscovite ()*	Pyrite ()*	Quartz ()*
Schorl ()*	Titanite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	253	227	2740
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	253	227	5433
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	253	227	17380
Pyrite ()*	Pyrite	FeS₂	253	227	39462
Quartz ()*	Quartz	SiO₂	253	227	61156
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	253	227	2705
Titanite ()*	Titanite	CaTi(SiO₄)O	253	227	4899
Zircon ()*	Zircon	Zr(SiO₄)	253	227	5251

1 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Alexandra-0415	253	227	241 ± 13	K-Ar	Age of diorite		biotite							60895	Leavitt Quarry, Leominster, Worcester Co., Massachusetts, USA	Leavitt quarry	Zartman et al. (1970)	10.1130/0016-7606(1970)81[3359:APDOKR]2.0.CO;2	GSAB81_3359

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...