Branford, New Haven County, Connecticut, USAi
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Branford | Town |
New Haven County | County |
Connecticut | State |
USA | Country |
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Latitude & Longitude (WGS84):
41° 16' 45'' North , 72° 48' 53'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
47232
Long-form identifier:
1:2:47232:5
GUID (UUID V4):
963eda03-564b-4412-ad34-021b9a9fe459
A populated place (town).
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities21 valid minerals.
Rock Types Recorded
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Alphabetical List Tree DiagramDetailed Mineral List:
β Albite Formula: Na(AlSi3O8) Localities: Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51) |
β Albite var. Oligoclase Formula: (Na,Ca)[Al(Si,Al)Si2O8] Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10068042. |
β 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) Localities: Reference: Gems and Minerals of America - Jay Ellis Ransom-1974 |
β 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51) |
β Calcite Formula: CaCO3 Localities: Habit: cleavable masses Colour: salmon orange Fluorescence: orange-red best under SW UV Description: Primary material as cleavable masses in a calc-silicate assemblage in the Plainfield Formation adjacent to the granite. Secondary material in clefts with quartz, chalcedony, and talc, mostly naturally dissolved away. Reference: Schairer, John Frank. (1931) The Minerals of Connecticut: State Geological and Natural History Survey Bulletin 51. |
β Diopside Formula: CaMgSi2O6 Habit: grains Colour: dark green Description: Found in a calc-silicate rock assemblage in the Plainfield Formation next to the granite. Species inferred from the properties, color and chemistry of the assemblage. Reference: Harold Moritz collection |
β Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) Colour: olive green Description: Granular material a calc-silicate assemblage in the Plainfield Formation adjacent to the granite. Reference: Foye, 1949. The Geology of Eastern CT, p.83 |
β Fluorapatite Formula: Ca5(PO4)3F Localities: Reference: Dana 6:767. |
β Fluorite Formula: CaF2 Reference: Foye, 1949. The Geology of Eastern CT, p.83 |
β 'Garnet Group' Formula: X3Z2(SiO4)3 Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51) |
β Grossular Formula: Ca3Al2(SiO4)3 Habit: dodecahedral Colour: dark brown Description: Crystals and grains in a calc-silicate assemblage in the Plainfield Formation adjacent to the granite. Reference: Harold Moritz collection |
β 'Heulandite Subgroup' Habit: coffin-shaped Colour: colorless Description: crystals to 13mm with stilbite, calcite, prehnite, pectolite Reference: Former Alfred E. Hammer collection |
β 'Hornblende' Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51) |
β 'Limonite' Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51) |
β Magnetite Formula: Fe2+Fe3+2O4 Reference: Foye, 1949. The Geology of Eastern CT, p.83 |
β Microcline Formula: K(AlSi3O8) Reference: Foye, 1949. The Geology of Eastern CT, p.83 |
β 'Monazite' Formula: REE(PO4) Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51) |
β Muscovite Formula: KAl2(AlSi3O10)(OH)2 Localities: Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51) |
β Opal Formula: SiO2 · nH2O Habit: thin films Colour: colorless Fluorescence: green under all UV wavelengths Description: Coating fractures in a calc-silicate assemblage in the Plainfield Formation adjacent to the granite. Reference: Harold Moritz collection |
β Opal var. Opal-AN Formula: SiO2 · nH2O Habit: thin films Colour: colorless Fluorescence: green under all UV wavelengths Description: Coating fractures in a calc-silicate assemblage in the Plainfield Formation adjacent to the granite. Reference: Harold Moritz collection |
β Orthoclase Formula: K(AlSi3O8) Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10068042. |
β Pectolite Formula: NaCa2Si3O8(OH) Habit: acicular, radiating Colour: white Description: stilbite, calcite, prehnite, heulandite Reference: Former Alfred E. Hammer collection |
β Prehnite Formula: Ca2Al2Si3O10(OH)2 Habit: botryoidal aggregates Colour: pale green Description: with stilbite, calcite, heulandite, pectolite Reference: Former Alfred E. Hammer collection |
β Pyrite Formula: FeS2 Localities: Habit: cubic Description: Tiny crystals in a calc-silicate assemblage in the Plainfield Formation adjacent to the granite. Reference: Foye, 1949. The Geology of Eastern CT, p.83 |
β Quartz Formula: SiO2 Localities: Habit: elongated prisms Colour: colorless to gray Description: Most material occurs as primary grains in the granite gneiss, but crystals to 1.5 cm can be found in clefts with calcite, chalcedony, talc and stilbite. Also massive material in a calc-silicate assemblage in the Plainfield Formation adjacent to the granite. Reference: Foye, 1949. The Geology of Eastern CT, p.83 |
β Quartz var. Chalcedony Formula: SiO2 Habit: massive Colour: pale orange Description: Late cleft-filling material with quartz, talc and probably calcite that later dissolved away. Reference: Harold Moritz collection |
β 'Scapolite' Colour: very pale green Fluorescence: magenta-red under SW UV Description: Massive to granular material in a calc-silicate assemblage in the Plainfield Formation adjacent to the granite. Reference: Harold Moritz collection |
β Spodumene Formula: LiAlSi2O6 Reference: Gems and Minerals of America - Jay Ellis Ransom-1974 |
β Stilbite-Ca Formula: NaCa4(Si27Al9)O72 · 28H2O Habit: elongated tabular Colour: tan Description: crystals to 7 mm, with heulandite, calcite, prehnite, pectolite Reference: Former Alfred E. Hammer collection |
β 'Stilbite Subgroup' Formula: M6-7[Al8-9Si27-28O72] · nH2O Habit: half or complete bow tie aggregates Colour: brown Description: Microcrystals in clefts with quartz and talc. Reference: Harold Moritz collection |
β Talc Formula: Mg3Si4O10(OH)2 Habit: spherical microaggregates Colour: pale green Description: As microaggregates in clefts with quartz, calcite, chalcedony, stilbite and as films along sheared fractures. Reference: Harold Moritz collection |
β Zircon Formula: Zr(SiO4) Description: As grains in the granite and pegmatite. Reference: Foye, 1949. The Geology of Eastern CT, p.83 |
β Zoisite ? Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51) |
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
β | Pyrite | 2.EB.05a | FeS2 |
Group 3 - Halides | |||
β | Fluorite | 3.AB.25 | CaF2 |
Group 4 - Oxides and Hydroxides | |||
β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
β | Opal | 4.DA.10 | SiO2 Β· nH2O |
β | var. Opal-AN | 4.DA.10 | SiO2 Β· nH2O |
β | Quartz | 4.DA.05 | SiO2 |
β | var. Chalcedony | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Calcite | 5.AB.05 | CaCO3 |
Group 8 - Phosphates, Arsenates and Vanadates | |||
β | Fluorapatite | 8.BN.05 | Ca5(PO4)3F |
Group 9 - Silicates | |||
β | Albite | 9.FA.35 | Na(AlSi3O8) |
β | var. Oligoclase | 9.FA.35 | (Na,Ca)[Al(Si,Al)Si2O8] |
β | Diopside | 9.DA.15 | CaMgSi2O6 |
β | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
β | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
β | Microcline | 9.FA.30 | K(AlSi3O8) |
β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
β | Orthoclase | 9.FA.30 | K(AlSi3O8) |
β | Pectolite | 9.DG.05 | NaCa2Si3O8(OH) |
β | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
β | Spodumene | 9.DA.30 | LiAlSi2O6 |
β | Stilbite-Ca | 9.GE.10 | NaCa4(Si27Al9)O72 Β· 28H2O |
β | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
β | Zircon | 9.AD.30 | Zr(SiO4) |
β | Zoisite ? | 9.BG.10 | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Unclassified Minerals, Rocks, etc. | |||
β | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
β | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
β | 'Garnet Group' | - | X3Z2(SiO4)3 |
β | 'Heulandite Subgroup' | - | |
β | 'Hornblende' | - | |
β | 'Limonite' | - | |
β | 'Monazite' | - | REE(PO4) |
β | 'Scapolite' | - | |
β | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] Β· nH2O |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Apatite | Ca5(PO4)3(Cl/F/OH) |
H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
H | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
H | β Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
H | β Pectolite | NaCa2Si3O8(OH) |
H | β Prehnite | Ca2Al2Si3O10(OH)2 |
H | β Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
H | β Talc | Mg3Si4O10(OH)2 |
H | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
H | β Opal var. Opal-AN | SiO2 · nH2O |
H | β Opal | SiO2 · nH2O |
H | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Li | Lithium | |
Li | β Spodumene | LiAlSi2O6 |
C | Carbon | |
C | β Calcite | CaCO3 |
O | Oxygen | |
O | β Fluorapatite | Ca5(PO4)3F |
O | β Magnetite | Fe2+Fe23+O4 |
O | β Quartz | SiO2 |
O | β Apatite | Ca5(PO4)3(Cl/F/OH) |
O | β Spodumene | LiAlSi2O6 |
O | β Albite | Na(AlSi3O8) |
O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
O | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
O | β Monazite | REE(PO4) |
O | β Garnet Group | X3Z2(SiO4)3 |
O | β Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
O | β Pectolite | NaCa2Si3O8(OH) |
O | β Prehnite | Ca2Al2Si3O10(OH)2 |
O | β Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
O | β Talc | Mg3Si4O10(OH)2 |
O | β Grossular | Ca3Al2(SiO4)3 |
O | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
O | β Zircon | Zr(SiO4) |
O | β Calcite | CaCO3 |
O | β Quartz var. Chalcedony | SiO2 |
O | β Opal var. Opal-AN | SiO2 · nH2O |
O | β Opal | SiO2 · nH2O |
O | β Microcline | K(AlSi3O8) |
O | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
O | β Orthoclase | K(AlSi3O8) |
O | β Diopside | CaMgSi2O6 |
O | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
F | Fluorine | |
F | β Fluorapatite | Ca5(PO4)3F |
F | β Fluorite | CaF2 |
F | β Apatite | Ca5(PO4)3(Cl/F/OH) |
F | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Na | Sodium | |
Na | β Albite | Na(AlSi3O8) |
Na | β Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
Na | β Pectolite | NaCa2Si3O8(OH) |
Na | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
Mg | Magnesium | |
Mg | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Mg | β Talc | Mg3Si4O10(OH)2 |
Mg | β Diopside | CaMgSi2O6 |
Al | Aluminium | |
Al | β Spodumene | LiAlSi2O6 |
Al | β Albite | Na(AlSi3O8) |
Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Al | β Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
Al | β Prehnite | Ca2Al2Si3O10(OH)2 |
Al | β Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
Al | β Grossular | Ca3Al2(SiO4)3 |
Al | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Al | β Microcline | K(AlSi3O8) |
Al | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
Al | β Orthoclase | K(AlSi3O8) |
Al | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Si | Silicon | |
Si | β Quartz | SiO2 |
Si | β Spodumene | LiAlSi2O6 |
Si | β Albite | Na(AlSi3O8) |
Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Si | β Garnet Group | X3Z2(SiO4)3 |
Si | β Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
Si | β Pectolite | NaCa2Si3O8(OH) |
Si | β Prehnite | Ca2Al2Si3O10(OH)2 |
Si | β Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
Si | β Talc | Mg3Si4O10(OH)2 |
Si | β Grossular | Ca3Al2(SiO4)3 |
Si | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Si | β Zircon | Zr(SiO4) |
Si | β Quartz var. Chalcedony | SiO2 |
Si | β Opal var. Opal-AN | SiO2 · nH2O |
Si | β Opal | SiO2 · nH2O |
Si | β Microcline | K(AlSi3O8) |
Si | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
Si | β Orthoclase | K(AlSi3O8) |
Si | β Diopside | CaMgSi2O6 |
Si | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
P | Phosphorus | |
P | β Fluorapatite | Ca5(PO4)3F |
P | β Apatite | Ca5(PO4)3(Cl/F/OH) |
P | β Monazite | REE(PO4) |
S | Sulfur | |
S | β Pyrite | FeS2 |
Cl | Chlorine | |
Cl | β Apatite | Ca5(PO4)3(Cl/F/OH) |
K | Potassium | |
K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
K | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
K | β Microcline | K(AlSi3O8) |
K | β Orthoclase | K(AlSi3O8) |
Ca | Calcium | |
Ca | β Fluorapatite | Ca5(PO4)3F |
Ca | β Fluorite | CaF2 |
Ca | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Ca | β Stilbite-Ca | NaCa4(Si27Al9)O72 · 28H2O |
Ca | β Pectolite | NaCa2Si3O8(OH) |
Ca | β Prehnite | Ca2Al2Si3O10(OH)2 |
Ca | β Grossular | Ca3Al2(SiO4)3 |
Ca | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Ca | β Calcite | CaCO3 |
Ca | β Albite var. Oligoclase | (Na,Ca)[Al(Si,Al)Si2O8] |
Ca | β Diopside | CaMgSi2O6 |
Ca | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Ti | Titanium | |
Ti | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Fe | Iron | |
Fe | β Magnetite | Fe2+Fe23+O4 |
Fe | β Pyrite | FeS2 |
Fe | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 or Simplified: K(Mg,Fe)3AlSi3O10(OH)2 |
Fe | β Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
Zr | Zirconium | |
Zr | β Zircon | Zr(SiO4) |
Localities in this Region
- Connecticut
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Ganderia DomainDomain
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Branford, New Haven County, Connecticut, USA