South Main Street construction site, Torrington (Wolcottville), Litchfield County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| South Main Street construction site | Construction Site (Inactive) |
| Torrington (Wolcottville) | Municipality |
| Litchfield County | County |
| Connecticut | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 46' 53'' North , 73° 7' 8'' West
Latitude & Longitude (decimal):
Type:
Construction Site (Inactive) - last checked 2020
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Torrington | 34,906 (2017) | 2.1km |
| Northwest Harwinton | 3,252 (2017) | 3.3km |
| West Torrington | 36,000 (2017) | 4.6km |
| Litchfield | 1,215 (2017) | 6.9km |
| Bantam | 735 (2017) | 11.6km |
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 |
|---|---|---|
| Bristol Gem & Mineral Club | Bristol, Connecticut | 19km |
| Lapidary and Mineral Society of Central Connecticut | Meriden, Connecticut | 37km |
A formerly vacant, rocky lot in a commercial/light industrial zone in southern Torrington that was leveled (probably for eventual development) during 2020 leaving a flat area at road level and an upper level separated by an approximately 6-meter-high, 300-meter-long N-S rock cut. The cut exposes the Ordovician Ratlum Mountain Formation (granofels and schist) and a few small intruding granitic pegmatites. Thin, small Alpine clefts in the Ratlum Mountain Formation host microcrystals of quartz, sphalerite, calcite, anatase, albite, adularia, hemimorphite, wulfenite, stilbite, heulandite-Ca, synchysite and pyrite. This is a suite of microminerals similar to those found in the Ratlum Mountain Formation at the state Routes 8 and 118 interchange in nearby Harwinton. There are small miarolitic cavities in at least one of the pegmatites. The most obvious accessory mineral in the pegmatites is schorl, more concentrated near the walls and showing the directional, oriented growth (subperpendicular to the contacts) typical of pegmatite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
14 valid minerals.
Detailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) Habit: anhedral (rock forming), wedge-shaped microcrystal overgrowths Colour: white Description: Abundant as rock-forming grains in schist, granofels and pegmatites. Also as microcrystalline overgrowths on grains lining Alpine clefts. References: |
| ⓘ Anatase Formula: TiO2 Habit: tabular Colour: dark blue to dark blue-green edge-on but with blue, yellow to brownish zones face-on Description: Microcrystals in thin Alpine clefts. References: |
| ⓘ Annite Formula: KFe2+3(AlSi3O10)(OH)2 Colour: black References: |
| ⓘ Bornite ? Formula: Cu5FeS4 Description: Partial microcrystal aggregate in an Alpine cleft with a blue iridescent tarnish. References: |
| ⓘ Calcite Formula: CaCO3 Colour: white Description: Microcrystals in thin Alpine clefts. References: |
| ⓘ Hemimorphite Formula: Zn4Si2O7(OH)2 · H2O Habit: elongated tabular Colour: white Fluorescence: pale blue-white under SW UV light Description: Microcrystals arranged in spherical to fan-shaped aggregates in thin Alpine clefts. References: |
| ⓘ Heulandite-Ca Formula: (Ca,Na)5(Si27Al9)O72 · 26H2O Habit: coffin-shaped Colour: pale yellow-white Description: Microcrystals in thin Alpine clefts. References: |
| ⓘ 'K Feldspar' References: |
| ⓘ 'K Feldspar var. Adularia' Formula: KAlSi3O8 Habit: Pseudorhombic Colour: white to pale pink Description: Microcrystals in Alpine clefts. References: |
| ⓘ Microcline Formula: K(AlSi3O8) Colour: orange-pink Description: Very coarse-grained anhedral crystals in pegmatites, particularly in the core zones. References: |
| ⓘ Muscovite Formula: KAl2(AlSi3O10)(OH)2 References: |
| ⓘ Pyrite Formula: FeS2 Habit: cubic Description: Microcrystals in thin Alpine clefts. References: |
| ⓘ Quartz Formula: SiO2 Habit: short prismatic Colour: milky to light smoky Description: Mostly as rock-forming grains in schist, granofels and pegmatites, but also as microcrystals in thin Alpine clefts and crystals to a couple of cm in miarolitic cavities in pegmatite. References: |
| ⓘ Quartz var. Smoky Quartz Formula: SiO2 References: |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) Habit: elongated prismatic Colour: black Description: Crystals to around 10 cm in pegmatites, particularly near the walls. References: |
| ⓘ Sphalerite Formula: ZnS Habit: complex tetrahedral Colour: orange to yellow-brown Description: Microcrystals and thin veins associated with thin Alpine clefts. References: |
| ⓘ 'Stilbite Subgroup' Formula: M6-7[Al8-9Si27-28O72] · nH2O References: |
| ⓘ 'Synchysite Group' Habit: tabular hexagonal Colour: chalky white Description: Microcrystalline aggregates in thin Alpine clefts. References: |
| ⓘ Wulfenite Formula: Pb(MoO4) Habit: acicular with square cross-section Colour: pale yellow Description: Microcrystals in thin Alpine clefts. References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Bornite ? | 2.BA.15 | Cu5FeS4 |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| ⓘ | Anatase | 4.DD.05 | TiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Wulfenite | 7.GA.05 | Pb(MoO4) |
| Group 9 - Silicates | |||
| ⓘ | Hemimorphite | 9.BD.10 | Zn4Si2O7(OH)2 · H2O |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| ⓘ | Annite | 9.EC.20 | KFe2+3(AlSi3O10)(OH)2 |
| ⓘ | Microcline | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Heulandite-Ca | 9.GE.05 | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Unclassified | |||
| ⓘ | 'K Feldspar var. Adularia' | - | KAlSi3O8 |
| ⓘ | 'Stilbite Subgroup' | - | M6-7[Al8-9Si27-28O72] · nH2O |
| ⓘ | 'K Feldspar' | - | |
| ⓘ | 'Synchysite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| H | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| H | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| H | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| B | Boron | |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Anatase | TiO2 |
| O | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| O | ⓘ Wulfenite | Pb(MoO4) |
| O | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Al | Aluminium | |
| Al | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Al | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Si | Silicon | |
| Si | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Si | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Stilbite Subgroup | M6-7[Al8-9Si27-28O72] · nH2O |
| Si | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| S | Sulfur | |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Sphalerite | ZnS |
| K | Potassium | |
| K | ⓘ K Feldspar var. Adularia | KAlSi3O8 |
| K | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| K | ⓘ Microcline | K(AlSi3O8) |
| K | ⓘ Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Heulandite-Ca | (Ca,Na)5(Si27Al9)O72 · 26H2O |
| Ti | Titanium | |
| Ti | ⓘ Anatase | TiO2 |
| Fe | Iron | |
| Fe | ⓘ Annite | KFe32+(AlSi3O10)(OH)2 |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Zn | Zinc | |
| Zn | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Zn | ⓘ Sphalerite | ZnS |
| Mo | Molybdenum | |
| Mo | ⓘ Wulfenite | Pb(MoO4) |
| Pb | Lead | |
| Pb | ⓘ Wulfenite | Pb(MoO4) |
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South Main Street construction site, Torrington, Litchfield County, Connecticut, USA