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:
Beryl Mountain Quarry (Beryl Mountain Pegmatites; Beryl Hill; William's Ledge), South Acworth, Sullivan Co., New Hampshire, USA

Oldest recorded age at locality: 342
Youngest recorded age at locality: 265.9

mindat Locality ID: 6000
mindat URL: http://www.mindat.org/loc-6000.html

Tectonic Settings:

Total number of sublocalities beneath "Beryl Mountain Quarry (Beryl Mountain Pegmatites; Beryl Hill; William's Ledge), South Acworth, Sullivan Co., New Hampshire, USA": 0
Total number of bottom-level sublocalities: 0

Latitude: 43°10'51"N
Longitude: 72°17'39"W
Decimal Degree (lat, lon): 43.180833333333,-72.294166666667

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	Apatite	Autunite	Beryl	Clay	Corundum	Diaspore	Feldspar	Fluorite	Garnet
Meta-autunite	Mica	None	Not in a structural group	Pyrite	Quartz	Schoepite	Tourmaline	Zircon

Albite ()*	Almandine ()*	Autunite ()*	Bertrandite ()*	Beryl ()*
Fluorapatite ()*	Goethite ()*	Hematite ()*	Meta-autunite ()*	Metaschoepite ()*
Microcline ()*	Muscovite ()*	Opal ()*	Paraschoepite ()*	Pyrite ()*
Quartz ()*	Rutherfordine ()*	Schoepite ()*	Schorl ()*	Uraninite ()*
Uranophane-α ()*	Vandendriesscheite ()*	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 Be C Ca F Fe H K Na O P Pb S Si U Zr

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

Structural Groups for minerals in this locality:
Amorphous Apatite Autunite Beryl Clay Corundum Diaspore Feldspar Fluorite Garnet
Meta-autunite Mica None Not in a structural group Pyrite Quartz Schoepite Tourmaline Zircon

23 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	342	265.9	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	342	265.9	2353
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	342	265.9	1272
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂	342	265.9	606
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	342	265.9	4286
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	342	265.9	2740
Goethite ()*	Diaspore	FeO(OH)	342	265.9	7437
Hematite ()*	Corundum	Fe₂O₃	342	265.9	14640
Meta-autunite ()*	Meta-autunite	Ca(UO₂)₂(PO₄)₂·6H₂O	342	265.9	388
Metaschoepite ()*	Schoepite	(UO₂)₈O₂(OH)₁₂·10H₂O	342	265.9	17
Microcline ()*	Feldspar	K(AlSi₃O₈)	342	265.9	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	338	265.9	17380
Opal ()*	Amorphous	SiO₂·nH₂O	342	265.9	2994
Paraschoepite ()*	None	UO₃·(2-x)H₂O	342	265.9	4
Pyrite ()*	Pyrite	FeS₂	342	265.9	39462
Quartz ()*	Quartz	SiO₂	342	265.9	61156
Rutherfordine ()*	None	(UO₂)(CO₃)	342	265.9	58
Schoepite ()*	Schoepite	(UO₂)₄O(OH)₆(H₂O)₆	342	265.9	94
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	342	265.9	2705
Uraninite ()*	Fluorite	UO₂	342	265.9	2718
Uranophane-α ()*	None	Ca(UO₂)₂(SiO₃OH)₂·5H₂O	342	265.9	890
Vandendriesscheite ()*	None	Pb_1.6(UO₂)₁₀O₆(OH)₁₁·11H₂O	342	265.9	52
Zircon ()*	Zircon	Zr(SiO₄)	342	340	5251

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	Sample Num	Dated Mineral	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
Alexandra-0189	341.82	340.66	341.24 ± 0.58	U-Pb	Age of pegmatite	zircon	10Dw500a	Zircon	6000	Beryl Mountain Quarry (Beryl Mountain Pegmatites; Beryl Hill; William's Ledge), South Acworth, Sullivan Co., New Hampshire, USA	Beryl Mountain pegmatite	Bradley et al. (2016)	10.3749/canmin.1600035	CM54_945
Alexandra-0190	272.1	265.9	269 ± 3.1	Ar-Ar	Age of pegmatite	muscovite	10ADw500a	Muscovite	6000	Beryl Mountain Quarry (Beryl Mountain Pegmatites; Beryl Hill; William's Ledge), South Acworth, Sullivan Co., New Hampshire, USA	Beryl Mountain pegmatite	Bradley et al. (2016)	10.3749/canmin.1600035	CM54_945
Alexandra-0410	338	318	328 ± 10	K-Ar	Age of pegmatite	muscovite		Muscovite	6000	Beryl Mountain Quarry (Beryl Mountain Pegmatites; Beryl Hill; William's Ledge), South Acworth, Sullivan Co., New Hampshire, USA	Beryl Mountain	Zartman et al. (1970)	10.1130/0016-7606(1970)81[3359:APDOKR]2.0.CO;2	GSAB81_3359
Bradley_2012_068	342	340	341±1	U/Pb		zircon		Zircon	6000	Beryl Mountain Quarry (Beryl Mountain Pegmatites; Beryl Hill; William's Ledge), South Acworth, Sullivan Co., New Hampshire, USA	Beryl Mountain	McCauley and Bradley (2014)	10.3749/canmin.52.2.183	CM52_183

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...