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Branford, New Haven Co., Connecticut, USAi
Regional Level Types
BranfordTown
New Haven Co.County
ConnecticutState
USACountry

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Key
Latitude & Longitude (WGS84):
41° 16' 45'' North , 72° 48' 53'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:


A populated place (town).

Regions containing this locality

North America PlateTectonic Plate

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Standard Detailed Strunz Dana Chemical Elements

Commodity 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-localities

17 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
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.
'Albite-Anorthite Series'
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10068042.
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51)
Calcite
Formula: CaCO3
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Foye, 1949. The Geology of Eastern CT, p.83
Fluorapatite
Formula: Ca5(PO4)3F
Fluorite
Formula: CaF2
Reference: Foye, 1949. The Geology of Eastern CT, p.83
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51)
'Heulandite subgroup'
Habit: coffin-shaped
Colour: colorless
Description: crystals to 13mm with stilbite, calcite, prehnite, pectolite
Reference: Former Alfred E. Hammer collection
'Hornblende'
Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51)
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51)
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Foye, 1949. The Geology of Eastern CT, p.83
Microcline
Formula: K(AlSi3O8)
Reference: Foye, 1949. The Geology of Eastern CT, p.83
'Monazite'
Reference: Schairer, John Frank (1931): The Minerals of Connecticut(State Geological and Natural History Survey Bulletin 51)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Orthoclase
Formula: K(AlSi3O8)
Reference: USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10068042.
Pectolite
Formula: NaCa2Si3O8(OH)
Habit: acicular, radiating
Colour: white
Description: stilbite, calcite, prehnite, heulandite
Reference: Former Alfred E. Hammer collection
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Habit: botryoidal aggregates
Colour: pale green
Description: with stilbite, calcite, heulandite, pectolite
Reference: Former Alfred E. Hammer collection
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Spodumene
Formula: LiAlSi2O6
Reference: Gems and Minerals of America - Jay Ellis Ransom-1974
Stilbite-Ca
Formula: NaCa4[Al9Si27O72] · nH2O
Habit: elongated tabular
Colour: tan
Description: crystals to 7 mm, with heulandite, calcite, prehnite, pectolite
Reference: Former Alfred E. Hammer collection
Zircon
Formula: Zr(SiO4)
Reference: Foye, 1949. The Geology of Eastern CT, p.83
Zoisite
Formula: Ca2Al3[Si2O7][SiO4]O(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
Pyrite2.EB.05aFeS2
Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 8 - Phosphates, Arsenates and Vanadates
Fluorapatite8.BN.05Ca5(PO4)3F
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Oligoclase9.FA.35(Na,Ca)[Al(Si,Al)Si2O8]
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Orthoclase9.FA.30K(AlSi3O8)
Pectolite9.DG.05NaCa2Si3O8(OH)
Prehnite9.DP.20Ca2Al2Si3O10(OH)2
Spodumene9.DA.30LiAlSi2O6
Stilbite-Ca9.GE.10NaCa4[Al9Si27O72] · nH2O
Zircon9.AD.30Zr(SiO4)
Zoisite9.BG.10Ca2Al3[Si2O7][SiO4]O(OH)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Garnet Group'-X3Z2(SiO4)3
'Heulandite subgroup'-
'Hornblende'-
'Limonite'-(Fe,O,OH,H2O)
'Monazite'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Fluorapatite41.8.1.1Ca5(PO4)3F
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Zoisite58.2.1b.1Ca2Al3[Si2O7][SiO4]O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Spodumene65.1.4.1LiAlSi2O6
Single-Width Unbranched Chains, W=1 with chains P=3
Pectolite65.2.1.4aNaCa2Si3O8(OH)
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 72 - PHYLLOSILICATES Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings
Two-Dimensional Infinite Sheets with Other Than Six-Membered Rings with 4-membered rings
Prehnite72.1.3.1Ca2Al2Si3O10(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Orthoclase76.1.1.1K(AlSi3O8)
Group 77 - TECTOSILICATES Zeolites
Zeolite group - True zeolites
Stilbite-Ca77.1.4.3NaCa4[Al9Si27O72] · nH2O
Unclassified Minerals, Mixtures, etc.
Albite
var: Oligoclase
-(Na,Ca)[Al(Si,Al)Si2O8]
'Albite-Anorthite Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Garnet Group'-X3Z2(SiO4)3
'Heulandite subgroup'-
'Hornblende'-
'Limonite'-(Fe,O,OH,H2O)
'Monazite'-

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H MuscoviteKAl2(AlSi3O10)(OH)2
H ApatiteCa5(PO4)3(Cl/F/OH)
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H Limonite(Fe,O,OH,H2O)
H ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
H Stilbite-CaNaCa4[Al9Si27O72] · nH2O
H PectoliteNaCa2Si3O8(OH)
H PrehniteCa2Al2Si3O10(OH)2
LiLithium
Li SpodumeneLiAlSi2O6
CCarbon
C CalciteCaCO3
OOxygen
O FluorapatiteCa5(PO4)3F
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O MagnetiteFe2+Fe23+O4
O MicroclineK(AlSi3O8)
O MuscoviteKAl2(AlSi3O10)(OH)2
O QuartzSiO2
O ZirconZr(SiO4)
O ApatiteCa5(PO4)3(Cl/F/OH)
O SpodumeneLiAlSi2O6
O AlbiteNa(AlSi3O8)
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O Garnet GroupX3Z2(SiO4)3
O Limonite(Fe,O,OH,H2O)
O ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
O CalciteCaCO3
O Stilbite-CaNaCa4[Al9Si27O72] · nH2O
O PectoliteNaCa2Si3O8(OH)
O PrehniteCa2Al2Si3O10(OH)2
O Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
O OrthoclaseK(AlSi3O8)
FFluorine
F FluorapatiteCa5(PO4)3F
F FluoriteCaF2
F ApatiteCa5(PO4)3(Cl/F/OH)
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
NaSodium
Na AlbiteNa(AlSi3O8)
Na Stilbite-CaNaCa4[Al9Si27O72] · nH2O
Na PectoliteNaCa2Si3O8(OH)
Na Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al MicroclineK(AlSi3O8)
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al SpodumeneLiAlSi2O6
Al AlbiteNa(AlSi3O8)
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Al Stilbite-CaNaCa4[Al9Si27O72] · nH2O
Al PrehniteCa2Al2Si3O10(OH)2
Al Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Al OrthoclaseK(AlSi3O8)
SiSilicon
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si MicroclineK(AlSi3O8)
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si QuartzSiO2
Si ZirconZr(SiO4)
Si SpodumeneLiAlSi2O6
Si AlbiteNa(AlSi3O8)
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si Garnet GroupX3Z2(SiO4)3
Si ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Si Stilbite-CaNaCa4[Al9Si27O72] · nH2O
Si PectoliteNaCa2Si3O8(OH)
Si PrehniteCa2Al2Si3O10(OH)2
Si Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
Si OrthoclaseK(AlSi3O8)
PPhosphorus
P FluorapatiteCa5(PO4)3F
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S PyriteFeS2
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
K MicroclineK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K OrthoclaseK(AlSi3O8)
CaCalcium
Ca FluorapatiteCa5(PO4)3F
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca FluoriteCaF2
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Ca CalciteCaCO3
Ca Stilbite-CaNaCa4[Al9Si27O72] · nH2O
Ca PectoliteNaCa2Si3O8(OH)
Ca PrehniteCa2Al2Si3O10(OH)2
Ca Albite (var: Oligoclase)(Na,Ca)[Al(Si,Al)Si2O8]
FeIron
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Fe Limonite(Fe,O,OH,H2O)
ZrZirconium
Zr ZirconZr(SiO4)

Localities in this Region


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