Cinque Quarry, East Haven, New Haven County, Connecticut, USAi
| Regional Level Types | |
|---|---|
| Cinque Quarry | Quarry |
| East Haven | Town |
| New Haven County | County |
| Connecticut | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 18' 4'' North , 72° 51' 55'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| East Haven | 29,257 (2017) | 2.8km |
| Branford | 29,438 (2017) | 4.8km |
| Branford Center | 5,819 (2017) | 5.0km |
| New Haven | 130,322 (2017) | 5.3km |
| West Haven | 54,927 (2017) | 7.6km |
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 |
|---|---|---|
| New Haven Mineral Club | New Haven, Connecticut | 5km |
| Lapidary and Mineral Society of Central Connecticut | Meriden, Connecticut | 27km |
| Bristol Gem & Mineral Club | Bristol, Connecticut | 42km |
| Long Island Mineral & Geology Society | Jamesport, New York | 46km |
A small quarry in Jurassic diabase (trap rock) intrusion, much of it brecciated, with mostly calcite and quartz crystals in the interstitial spaces. Worked since at least the early 1970s until around 1990. It was a fee collecting site (Powell and Vogt, 1987) in the 1980s until at least 1990. Famous for rare quartz on calcite "skunks" and abundant nice micro fibrous goethite and rosette hematite crystals developed on and in the calcite and quartz. Also noted for the presence of tachylite (igneous glass), which is very rare older than the Cretaceous as it devitrifies over geologic time.
This is the same locality referred to in old notes by John Hiller as the traprock area behind the Weeping Willow Restaurant on Laurel Street.
The site is closed and the land largely reclaimed and developed.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
14 valid minerals.
* - Minerals that have never been found, but their existence is inferred in some way (e.g. from pseudomorphs)
Detailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ Anhydrite Formula: CaSO4 Habit: tabular Description: As rectangular, tabular molds in later forming minerals calcite and quartz, as the anhydrite later naturally dissolved away. |
| ⓘ Aragonite Formula: CaCO3 Habit: short fibrous acicular |
| ⓘ Baryte Formula: BaSO4 |
| ✪ Calcite Formula: CaCO3 Habit: scalenohedral Colour: white Description: Crystals to 3 cm, though typically around 1 cm. |
| ⓘ Chalcopyrite Formula: CuFeS2 Habit: anhedral Colour: brassy with iridescence Description: tiny irregular grains |
| ⓘ 'Chlorite Group' Habit: microscopic flakes, or crusts Colour: green, pink to cream Description: As exceedingly fine flakes. It is most commonly green, but may also be found pink or cream-colored crusts, also as inclusions coloring quartz or calcite. |
| ✪ Goethite Formula: Fe3+O(OH) Habit: fibrous, acicular microcrystals, singly or in fan-shaped or bow tie aggregates Colour: brown to golden yellow Description: Needle-like and very small (micro) in size. It has a multi-colored tarnish which causes some specimens to be dark brown at the base, tapering off to a golden color at the end. Many of the aggregates appear as miniature "pincushions" which are generally dark brown. When many tufts occur together, they take on a velvety appearance which is quite beautiful. Another attractive aggregate occurrence are the goethite "bowties" which can frequently be found. Goethite is always found associated with quartz and calcite, and can be found as inclusions in quartz, which occurred during the final stages of crystal development. |
| ⓘ Gypsum ? Formula: CaSO4 · 2H2O Habit: powder Colour: white to pink Description: Powdery alteration of anhydrite, unconfirmed. |
| ✪ Hematite Formula: Fe2O3 Habit: microscopic tabular plates and rosettes or botryoidal Colour: maroon to black Description: Black, platy rosettes ranging in size from super-micro to a more easily-seen three millimeters. As an inclusion in quartz, in which case it accounts for the bright red color of the host crystal. It also can be frequently observed as an inclusion in calcite. The red staining of any mineral found where can be attributed to hematite. |
| ⓘ Marcasite Formula: FeS2 Habit: radiating Description: a thin radiating structure, much like a pyrite sun, along a crack in the basalt |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 |
| ⓘ Pyrite Formula: FeS2 Habit: microscopic pyritohedrons and cubes Description: Typically perched on calcite or goethite, rather than quartz. Crystals include "right angle" crystals. |
| ✪ Quartz Formula: SiO2 Habit: very short prismatic or quartzoid, commonly doubly-terminated Colour: colorless to white Description: Crystals to 1 cm, commonly colored green or red by chlorite or hematite inclusions. Also commonly penetrated by goethite fibers. |
| ⓘ Quartz var. Agate Formula: SiO2 Habit: cryptocrystalline Colour: pale blue-gray to gray Description: Thin band rarely lining vesicles grading to quartz or amethyst toward the center. References: |
| ⓘ Quartz var. Amethyst Formula: SiO2 Habit: very short prismatic or quartzoid Colour: pale purple Description: Many crystals appear to be amethyst but are actually colored reddish by hematite and goethite inclusions. |
| ✪ Quartz var. Smoky Quartz Formula: SiO2 Habit: very short prismatic or quartzoid Colour: dark brown to black Description: Crystals to 1 cm, commonly penetrated by goethite fibers. |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 |
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Goethite | 4.00. | Fe3+O(OH) |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Quartz var. Agate | 4.DA.05 | SiO2 |
| ⓘ | var. Amethyst | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | var. Smoky Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anhydrite ? | 7.AD.30 | CaSO4 |
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Gypsum ? | 7.CD.40 | CaSO4 · 2H2O |
| Group 9 - Silicates | |||
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Quartz var. Agate | SiO2 |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Quartz var. Amethyst | SiO2 |
| O | ⓘ Anhydrite | CaSO4 |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Quartz var. Smoky Quartz | SiO2 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Mg | Magnesium | |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Agate | SiO2 |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Quartz var. Amethyst | SiO2 |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Quartz var. Smoky Quartz | SiO2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| S | Sulfur | |
| S | ⓘ Anhydrite | CaSO4 |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Anhydrite | CaSO4 |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Ganderia DomainDomain
- GranderiaPassive Margin
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Cinque Quarry, East Haven, New Haven County, Connecticut, USA