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:
Bolton, Worcester Co., Massachusetts, USA

mindat Locality ID: 22652
mindat URL: http://www.mindat.org/loc-22652.html

Tectonic Settings:

Total number of sublocalities beneath "Bolton, Worcester Co., Massachusetts, USA": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Bolton Lime Quarries (Bolton Quarry; Whitcomb Quarry; Hildreth Quarry)
Bolton Pegmatite Float Boulder Occurrence
Pine Hill

Latitude: 42°25'42"N
Longitude: 71°35'"W
Decimal Degree (lat, lon): 42.428333333333,-71.583333333333

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.

Amorphous	Amphibole	Andalusite	Apatite	Arsenopyrite	Beryl	Calcite	Chalcopyrite	Clay	Clinozoisite
Epidote	Feldspar	Humite	Mica	Molybdenite	Nickeline	None	Not in a structural group	Olivine	Pyrite
Pyroxene	Quartz	Rutile	Scapolite	Serpentine	Smectite-vermiculite	Spinel	Talc	Titanite	Tourmaline
Zircon

Actinolite ()*	Albite ()*	Andalusite ()*	Antigorite ()*	Arsenopyrite ()*
Augite ()*	Beryl ()*	Calcite ()*	Chalcopyrite ()*	Chondrodite ()*
Clinohumite ()*	Diopside ()*	Dolomite ()*	Epidote ()*	Fluorapatite ()*
Forsterite ()*	Graphite ()*	Magnesio-hornblende ()*	Magnesite ()*	Magnetite ()*
Meionite ()*	Microcline ()*	Molybdenite ()*	Muscovite ()*	Opal ()*
Pargasite ()*	Petalite ()*	Phlogopite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Rutile ()*	Schorl ()*	Sillimanite ()*	Spinel ()*
Talc ()*	Titanite ()*	Tremolite ()*	Vermiculite ()*	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 As B Be C Ca Cu F Fe H K Li Mg Mo Na O P S Si Ti Zr

Elements from minerals reported directly at this locality: Al B Be Fe H Na O Si

Structural Groups for minerals in this locality:
Amorphous Amphibole Andalusite Apatite Arsenopyrite Beryl Calcite Chalcopyrite Clay Clinozoisite
Epidote Feldspar Humite Mica Molybdenite Nickeline None Not in a structural group Olivine Pyrite
Pyroxene Quartz Rutile Scapolite Serpentine Smectite-vermiculite Spinel Talc Titanite Tourmaline
Zircon

40 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Actinolite ()*	Amphibole	Ca₂(Mg_4.5-2.5Fe²⁺_0.5-2.5)Si₈O₂₂(OH)₂	1	219816	3419
Albite ()*	Feldspar	Na(AlSi₃O₈)	2	219816,219817	8803
Andalusite ()*	Andalusite	Al₂SiO₅	0		1310
Antigorite ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	1	219816	708
Arsenopyrite ()*	Arsenopyrite	FeAsS	1	219816	9052
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	1	219816	2060
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	0		4286
Calcite ()*	Calcite	Ca(CO₃)	1	219816	27770
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	1	219816	27198
Chondrodite ()*	Humite	Mg₅(SiO₄)₂F₂	1	219816	285
Clinohumite ()*	Humite	Mg₉(SiO₄)₄F₂	1	219816	236
Diopside ()*	Pyroxene	CaMgSi₂O₆	1	219816	4135
Dolomite ()*	None	CaMg(CO₃)₂	1	219816	9895
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	219816	8173
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	1	219816	2740
Forsterite ()*	Olivine	Mg₂(SiO₄)	1	219816	1188
Graphite ()*	None	C	1	219816	2812
Magnesio-hornblende ()*	Amphibole	Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂	1	219816	238
Magnesite ()*	Calcite	Mg(CO₃)	1	219816	1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	1	219816	14899
Meionite ()*	Scapolite	Ca₄Al₆Si₆O₂₄(CO₃)	1	219816	176
Microcline ()*	Feldspar	K(AlSi₃O₈)	2	219816,219817	4924
Molybdenite ()*	Molybdenite	MoS₂	1	219816	5800
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	2	219816,219817	17380
Opal ()*	Amorphous	SiO₂·nH₂O	1	219816	2994
Pargasite ()*	Amphibole	NaCa₂(Mg₄Al)(Si₆Al₂)O₂₂(OH)₂	1	219816	313
Petalite ()*	Not in a structural group	LiAlSi₄O₁₀	1	219816	124
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	1	219816	2273
Pyrite ()*	Pyrite	FeS₂	1	219816	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	1	219816	9056
Quartz ()*	Quartz	SiO₂	2	219816,219817	61156
Rutile ()*	Rutile	TiO₂	1	219816	5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	0		2705
Sillimanite ()*	Not in a structural group	Al₂SiO₅	1	219816	1516
Spinel ()*	Spinel	MgAl₂O₄	1	219816	1934
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	1	219816	3337
Titanite ()*	Titanite	CaTi(SiO₄)O	1	219816	4899
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	1	219816	2562
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	1	219816	652
Zircon ()*	Zircon	Zr(SiO₄)	1	219816	5251

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...