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Bates' Rock Road, Southbury, New Haven Co., Connecticut, USA

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Latitude & Longitude (WGS84): 41° 30' 0'' North , 73° 14' 4'' West
Latitude & Longitude (decimal): 41.50000,-73.23444
GeoHash:G#: dr7ujdb71
Locality type:Road
Köppen climate type:Cfa : Humid subtropical climate


Currently underneath a housing development. Construction during the 1990s uncovered a pillowed section of the Orenaug basalt with interstitial spaces between pillows up to as long as an arm. These spaces contained fine examples of amethyst, smoky quartz and quartz epimorphs encrusting now dissolved anhydrite, commonly incorrectly labelled as coming from the nearby O & G quarry. These finds were made by Bill Barrett, a local contractor and mineral collector widely known for his excellent and extensive collection of Southbury minerals.

Exact spot not certain, coordinates are approximate.

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from mindat.org, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Bates' Rock Road Construction, Southbury, New Haven Co., Connecticut, USA

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

Anhydrite
Formula: CaSO4
Habit: acicular, bladed
Description: Crystals now dissolved, were encrusted by drusy quartz, to at least 5 cm.
Reference: Bill Barrett collection
Calcite
Formula: CaCO3
Habit: rhombohedral, scalenohedral
Colour: white, pale yellow
Fluorescence: magenta/pink to red, best under MW, SW similar but usually weaker
Reference: Bill Barrett collection
Goethite
Formula: α-Fe3+O(OH)
Habit: needles
Colour: brown
Description: dusting of tiny needles on quartz
Reference: Bill Barrett collection
Hematite
Formula: Fe2O3
Habit: blebs, flakes to rosettes
Colour: dark red
Description: Small blebs and encrustations on quartz.
Reference: Bill Barrett collection
Prehnite
Formula: Ca2Al2Si3O10(OH)2
Habit: botryoidal aggregates
Colour: pale green
Reference: Bill Barrett collection
Quartz
Formula: SiO2
Habit: bipyramidal quartzoid
Colour: milky to colorless
Description: Typically as druzes and aggregates of prismless quartzoids formed as columnar epimorphs on now dissolved anhydrite to several cm.
Reference: Bill Barrett collection
Quartz var: Agate
Colour: Typical (for the Orenaug Basalt) bands of white, blue-gray, smoky brown.
Reference: Bill Barrett collection
Quartz var: Amethyst
Formula: SiO2
Habit: Cumberland habit
Colour: Purple, in radial zones.
Description: Crystals to about 2 cm, in layers capping or overgrowing milky quartz.
Reference: Bill Barrett collection
Quartz var: Chalcedony
Formula: SiO2
Colour: Typical (for the Orenaug Basalt) bands of white, blue-gray, smoky brown.
Reference: Bill Barrett collection
Quartz var: Smoky Quartz
Formula: SiO2
Habit: Cumberland habit (prismless quartzoids)
Colour: smoky brown
Reference: Bill Barrett collection

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
var: Agate4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anhydrite7.AD.30CaSO4
Group 9 - Silicates
Prehnite9.DP.20Ca2Al2Si3O10(OH)2

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anhydrite28.3.2.1CaSO4
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
Unclassified Minerals, Rocks, etc.
var: Agate-SiO2
var: Amethyst-SiO2
var: Chalcedony-SiO2
var: Smoky Quartz-SiO2

List of minerals for each chemical element

HHydrogen
H Goethiteα-Fe3+O(OH)
H PrehniteCa2Al2Si3O10(OH)2
CCarbon
C CalciteCaCO3
OOxygen
O Quartz (var: Amethyst)SiO2
O AnhydriteCaSO4
O CalciteCaCO3
O Quartz (var: Chalcedony)SiO2
O Goethiteα-Fe3+O(OH)
O HematiteFe2O3
O PrehniteCa2Al2Si3O10(OH)2
O QuartzSiO2
O Quartz (var: Smoky Quartz)SiO2
AlAluminium
Al PrehniteCa2Al2Si3O10(OH)2
SiSilicon
Si Quartz (var: Amethyst)SiO2
Si Quartz (var: Chalcedony)SiO2
Si PrehniteCa2Al2Si3O10(OH)2
Si QuartzSiO2
Si Quartz (var: Smoky Quartz)SiO2
SSulfur
S AnhydriteCaSO4
CaCalcium
Ca AnhydriteCaSO4
Ca CalciteCaCO3
Ca PrehniteCa2Al2Si3O10(OH)2
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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