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Clark Ledge pegmatite locality, Chesterfield, Hampshire County, Massachusetts, USAi
| Regional Level Types | |
|---|---|
| Clark Ledge pegmatite locality | - not defined - |
| Chesterfield | Town |
| Hampshire County | County |
| Massachusetts | State |
| USA | Country |
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Latitude & Longitude (WGS84):
42° 25' 14'' North , 72° 53' 32'' West
Latitude & Longitude (decimal):
Kรถppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Cummington | 995 (2017) | 4.6km |
| Chesterfield | 1,222 (2017) | 5.4km |
| Goshen | 937 (2017) | 7.9km |
| Peru | 835 (2017) | 12.7km |
| Middlefield | 551 (2017) | 12.9km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Northern Berkshire Mineral Club | North Adams, Massachusetts | 36km |
| Connecticut Valley Mineral Club | Springfield, Massachusetts | 43km |
Granite pegmatite. Berkshire pegmatite field. Found about 1811 by Dr. David Hunt of Northampton, Massachusetts. The locality was on the Joseph Clark farm. He may have spelled his name with a final "e": Clarke. This is the "type" locality for albite variety cleavelandite as well as microlite.
"The most noted locality of green and red tourmalines is in Chesterfield, on land of Mr. Clark. They are contained in an enormous vein of granite in mica slate, which corresponds nearly in direction with the layers of the slate. This granite is crossed obliquely by a vein varying in width from six to eighteen inches, of smoky quartz and silicious feldspar: or rather the quartz forms the central part of the vein and the feldspar lies on each side of the quartz: the green red and blue tourmalines, with schorl and sometimes beryl passing through the feldspar and the quartz. This cross vein has been laid open from twelve to twenty feet by blasting; and it is really in the eye of a mineralogist a splendid object. I do not see that there is any prospect that it will soon be exhausted; although I doubt whether as fine specimens are now obtained from it as formerly."
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Standard Detailed Gallery Strunz Chemical ElementsMineral List
15 valid minerals. 2 (FRL) - first recorded locality of unapproved mineral/variety/etc. 1 erroneous literature entry.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| โ Albite Formula: Na(AlSi3O8) |
| โ Albite var. Cleavelandite (FRL) Formula: Na(AlSi3O8) Type Locality: |
| โ Almandine Formula: Fe2+3Al2(SiO4)3 |
| โ Autunite Formula: Ca(UO2)2(PO4)2 · 10-12H2O |
| โ Beryl Formula: Be3Al2(Si6O18) |
| โ 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| โ Cassiterite Formula: SnO2 |
| โ Columbite-(Fe) Formula: Fe2+Nb2O6 |
| โ Columbite-(Mn) Formula: Mn2+Nb2O6 References: |
| โ Cookeite ? Formula: (LiAl4◻)[AlSi3O10](OH)8 |
| โ Elbaite Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| โ 'Lepidolite' |
| โ Microcline Formula: K(AlSi3O8) |
| โ 'Microlite Group' (FRL) Formula: A2-mTa2X6-wZ-n Type Locality: Description: Sometimes occurs directly in dark green elbaite or in contact with it. Crystals usually less than 1 mm. Given the controversy the species caused in the time period, Shepard lamented that it should have been named gigantolite, a species name he also introduced for another mineral. |
| โ Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| โ Formula: (Cs,Na)2(Al2Si4O12) · 2H2O |
| โ Quartz Formula: SiO2 |
| โ Quartz var. Smoky Quartz Formula: SiO2 References: |
| โ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| โ Spodumene Formula: LiAlSi2O6 References: |
| โ 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
| โ 'Tourmaline var. Watermelon Tourmaline' Formula: A(D3)G6(T6O18)(BO3)3X3Z |
| โ Zircon Formula: Zr(SiO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| โ | 'Microlite Group' (TL) | 4.00. | A2-mTa2X6-wZ-n |
| โ | Quartz | 4.DA.05 | SiO2 |
| โ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| โ | Cassiterite | 4.DB.05 | SnO2 |
| โ | Columbite-(Fe) | 4.DB.35 | Fe2+Nb2O6 |
| โ | Columbite-(Mn) | 4.DB.35 | Mn2+Nb2O6 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| โ | Autunite | 8.EB.05 | Ca(UO2)2(PO4)2 ยท 10-12H2O |
| Group 9 - Silicates | |||
| โ | Almandine | 9.AD.25 | Fe2+3Al2(SiO4)3 |
| โ | Zircon | 9.AD.30 | Zr(SiO4) |
| โ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| โ | Elbaite | 9.CK.05 | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| โ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| โ | Spodumene | 9.DA.30 | LiAlSi2O6 |
| โ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| โ | Cookeite ? | 9.EC.55 | (LiAl4โป)[AlSi3O10](OH)8 |
| โ | Microcline | 9.FA.30 | K(AlSi3O8) |
| โ | Albite | 9.FA.35 | Na(AlSi3O8) |
| โ | var. Cleavelandite (TL) | 9.FA.35 | Na(AlSi3O8) |
| โ | Pollucite ? | 9.GB.05 | (Cs,Na)2(Al2Si4O12) ยท 2H2O |
| Unclassified | |||
| โ | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| โ | 'Lepidolite' | - | |
| โ | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
| โ | 'var. Watermelon Tourmaline' | - | A(D3)G6(T6O18)(BO3)3X3Z |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | โ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| H | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| H | โ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| H | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | โ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| H | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Li | Lithium | |
| Li | โ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Li | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Li | โ Spodumene | LiAlSi2O6 |
| Be | Beryllium | |
| Be | โ Beryl | Be3Al2(Si6O18) |
| B | Boron | |
| B | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | โ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| B | โ Tourmaline var. Watermelon Tourmaline | A(D3)G6(T6O18)(BO3)3X3Z |
| O | Oxygen | |
| O | โ Albite | Na(AlSi3O8) |
| O | โ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| O | โ Almandine | Fe32+Al2(SiO4)3 |
| O | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| O | โ Beryl | Be3Al2(Si6O18) |
| O | โ Cassiterite | SnO2 |
| O | โ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| O | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | โ Columbite-(Fe) | Fe2+Nb2O6 |
| O | โ Columbite-(Mn) | Mn2+Nb2O6 |
| O | โ Microcline | K(AlSi3O8) |
| O | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | โ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| O | โ Quartz | SiO2 |
| O | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | โ Quartz var. Smoky Quartz | SiO2 |
| O | โ Spodumene | LiAlSi2O6 |
| O | โ Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
| O | โ Zircon | Zr(SiO4) |
| O | โ Albite var. Cleavelandite | Na(AlSi3O8) |
| O | โ Tourmaline var. Watermelon Tourmaline | A(D3)G6(T6O18)(BO3)3X3Z |
| F | Fluorine | |
| F | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Na | Sodium | |
| Na | โ Albite | Na(AlSi3O8) |
| Na | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | โ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Na | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | โ Albite var. Cleavelandite | Na(AlSi3O8) |
| Mg | Magnesium | |
| Mg | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | Aluminium | |
| Al | โ Albite | Na(AlSi3O8) |
| Al | โ Almandine | Fe32+Al2(SiO4)3 |
| Al | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Al | โ Beryl | Be3Al2(Si6O18) |
| Al | โ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Al | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | โ Microcline | K(AlSi3O8) |
| Al | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | โ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Al | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | โ Spodumene | LiAlSi2O6 |
| Al | โ Albite var. Cleavelandite | Na(AlSi3O8) |
| Si | Silicon | |
| Si | โ Albite | Na(AlSi3O8) |
| Si | โ Almandine | Fe32+Al2(SiO4)3 |
| Si | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Si | โ Beryl | Be3Al2(Si6O18) |
| Si | โ Cookeite | (LiAl4◻)[AlSi3O10](OH)8 |
| Si | โ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | โ Microcline | K(AlSi3O8) |
| Si | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | โ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Si | โ Quartz | SiO2 |
| Si | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | โ Quartz var. Smoky Quartz | SiO2 |
| Si | โ Spodumene | LiAlSi2O6 |
| Si | โ Zircon | Zr(SiO4) |
| Si | โ Albite var. Cleavelandite | Na(AlSi3O8) |
| P | Phosphorus | |
| P | โ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| K | Potassium | |
| K | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| K | โ Microcline | K(AlSi3O8) |
| K | โ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | โ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
| Ti | Titanium | |
| Ti | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Mn | Manganese | |
| Mn | โ Columbite-(Mn) | Mn2+Nb2O6 |
| Fe | Iron | |
| Fe | โ Almandine | Fe32+Al2(SiO4)3 |
| Fe | โ Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
| Fe | โ Columbite-(Fe) | Fe2+Nb2O6 |
| Fe | โ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Zr | Zirconium | |
| Zr | โ Zircon | Zr(SiO4) |
| Nb | Niobium | |
| Nb | โ Columbite-(Fe) | Fe2+Nb2O6 |
| Nb | โ Columbite-(Mn) | Mn2+Nb2O6 |
| Sn | Tin | |
| Sn | โ Cassiterite | SnO2 |
| Cs | Caesium | |
| Cs | โ Pollucite | (Cs,Na)2(Al2Si4O12) · 2H2O |
| Ta | Tantalum | |
| Ta | โ Microlite Group | A2-mTa2X6-wZ-n |
| U | Uranium | |
| U | โ Autunite | Ca(UO2)2(PO4)2 · 10-12H2O |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Piedmontia DomainDomain
- Taconic ArcVolcanic Arc
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Clark Ledge pegmatite locality, Chesterfield, Hampshire County, Massachusetts, USA