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It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Petrillo Quarry (Shellpot Quarry), Wilmington, New Castle County, Delaware, USAi
Regional Level Types
Petrillo Quarry (Shellpot Quarry)Quarry
WilmingtonCity
New Castle CountyCounty
DelawareState
USACountry

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Latitude & Longitude (WGS84):
39° 45' 44'' North , 75° 30' 52'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Bellefonte1,193 (2011)0.6km
Edgemoor5,677 (2011)1.9km
Wilmington71,948 (2017)3.3km
Ardencroft231 (2011)5.1km
Penns Grove4,945 (2017)5.4km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Delaware Mineralogical Society, Inc.Wilmington, Delaware3km
Tuscarora Lapidary SocietyBrookhaven, Pennsylvania16km
Delaware Valley Earth Science SocietyWoodbury, New Jersey32km
Delaware Valley Paleontological SocietyPhiladelphia, Pennsylvania37km
Philadelphia Mineralogical SocietyPhiladelphia, Pennsylvania37km
Mindat Locality ID:
28672
Long-form identifier:
mindat:1:2:28672:8
GUID (UUID V4):
0


An aggregate quarry in gabbro. Located on the North side of Edgemoor Road. Started about 1866 and owned by Mr. A, Petrillo. Workings were 600 feet long by 500 feet wide and 75 feet deep (or high at the face).

A quarry originally opened by P. P. Tyre in 1885 known as the Shellpot Quarry, working the local Brandywine Granite or “Blue Stone”, a tough hypersthene-quartz-andesine gneiss (Woodruff and Thompson, 1975) that was commonly quarried in the Wilmington area. Providing dimensional stone for construction in the region and curbstone for Germantown in Philadelphia, the deposit at Shellpot was remarked for it’s superior quality and was contracted to supply four-foot blocks for use as support for the Brooklyn and St. Georges bridges. By the mid 20th C. it was the last of the Wilmington “Blue stone” quarries still in operation, with Petrillo Bros., Inc. primarily producing riprap and crushed aggregate stone until it’s operations finally closed in 1968.


This quarry was backfilled and developed in 2002. (MRH-Wil, DE)

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


1 valid mineral.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
var. Smoky Quartz4.DA.05SiO2
Unclassified
'Hypersthene'-(Mg,Fe)SiO3

List of minerals for each chemical element

OOxygen
O Hypersthene(Mg,Fe)SiO3
O QuartzSiO2
O Quartz var. Smoky QuartzSiO2
MgMagnesium
Mg Hypersthene(Mg,Fe)SiO3
SiSilicon
Si Hypersthene(Mg,Fe)SiO3
Si QuartzSiO2
Si Quartz var. Smoky QuartzSiO2
FeIron
Fe Hypersthene(Mg,Fe)SiO3

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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