Reeser's Summit, Frogtown, York County, Pennsylvania, USAi
| Regional Level Types | |
|---|---|
| Reeser's Summit | - not defined - |
| Frogtown | - not defined - |
| York County | County |
| Pennsylvania | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 12' 2'' North , 76° 52' 2'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| New Market | 816 (2017) | 2.8km |
| New Cumberland | 7,295 (2017) | 3.8km |
| Lower Allen | 6,694 (2017) | 4.0km |
| Steelton | 5,932 (2017) | 4.4km |
| Enhaut | 1,007 (2017) | 4.9km |
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 |
|---|---|---|
| Central Pennsylvania Rock and Mineral Club, Inc. | Harrisburg, Pennsylvania | 8km |
| Mason-Dixon Rock, Mineral, Gemological, & Lapidary Club | Hanover, Pennsylvania | 46km |
A PGM occurrence located about 2.3 km (7,400 feet) NNW of Frogtown, in the Steelton quadrangle.
PGM minerals are found as micron-sized grains in ferrogabbro phase of the York Haven Diabase. Also found are unnamed Pd3Sb2, (Pd,Pt)(As,Sb) and an uytenbogaardite-like mineral.
NOTE: The andradite image shown above this entry as of 2/22/2012 is from a different, unrelated occurrence.
On 5/14/2012, R. C. Smith, II and J.H. Barnes identified a single, 2x2 micron euhedral grain of sperrylite containing 1.35 % Co, 0.32 Ni, 44.61 As, 0.66 Pd, 1.93 Ir, and 51.12 Pt. It was closely associated with as yet, unidentified (Ni,Fe,Co)4(As,S)3 and (Ni,Fe,Co)3(As,S)2. This sample, as those previously studied, was from 246 to 260 m from the upper contact of the York Haven Diabase on the east side of I-83, Fairview Township, York County, Pennsylvania.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Bornite Formula: Cu5FeS4 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Cobaltite Formula: CoAsS |
| ⓘ Fayalite Formula: Fe2+2SiO4 Habit: Millimeter sized grains with a pebbly surface, high relief Colour: nearly colorless to very pale yellowish green Description: Occuring in Quartz ferrogabbo, Fayalite has been observed only in thin section. Millimeter sized grains with a pebbly surface, high relief. The grains are nearly colorless to very pale yellowish green with pastel interfefence colors under crossed nicols. |
| ⓘ Galena Formula: PbS |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 References: |
| ⓘ Safflorite Formula: (Co,Ni,Fe)As2 |
| ⓘ Sperrylite Formula: PtAs2 References: |
| ⓘ Sphalerite Formula: ZnS |
| ⓘ Sudburyite Formula: PdSb |
| ⓘ Ulvöspinel Formula: TiFe2+2O4 Description: Discovered in microprobe analysis, accepted from analysis by Robert C. Smith (1973), however no evidence has been presented for a specimen containing greater than 50 mol-percent Ulvöspinel. |
| ⓘ Ungavaite Formula: Pd4Sb3 References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Ungavaite | 2.AC.35b | Pd4Sb3 |
| ⓘ | Bornite | 2.BA.15 | Cu5FeS4 |
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Sudburyite | 2.CC.05 | PdSb |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Sperrylite | 2.EB.05a | PtAs2 |
| ⓘ | Safflorite | 2.EB.15a | (Co,Ni,Fe)As2 |
| ⓘ | Cobaltite | 2.EB.25 | CoAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| ⓘ | Ulvöspinel | 4.BB.05 | TiFe2+2O4 |
| Group 9 - Silicates | |||
| ⓘ | Fayalite | 9.AC.05 | Fe2+2SiO4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Fayalite | Fe22+SiO4 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| O | ⓘ Ulvöspinel | TiFe22+O4 |
| Si | Silicon | |
| Si | ⓘ Fayalite | Fe22+SiO4 |
| S | Sulfur | |
| S | ⓘ Bornite | Cu5FeS4 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Cobaltite | CoAsS |
| S | ⓘ Galena | PbS |
| S | ⓘ Sphalerite | ZnS |
| Ti | Titanium | |
| Ti | ⓘ Ulvöspinel | TiFe22+O4 |
| Fe | Iron | |
| Fe | ⓘ Bornite | Cu5FeS4 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Fayalite | Fe22+SiO4 |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | ⓘ Safflorite | (Co,Ni,Fe)As2 |
| Fe | ⓘ Ulvöspinel | TiFe22+O4 |
| Co | Cobalt | |
| Co | ⓘ Cobaltite | CoAsS |
| Co | ⓘ Safflorite | (Co,Ni,Fe)As2 |
| Ni | Nickel | |
| Ni | ⓘ Safflorite | (Co,Ni,Fe)As2 |
| Cu | Copper | |
| Cu | ⓘ Bornite | Cu5FeS4 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | ⓘ Sphalerite | ZnS |
| As | Arsenic | |
| As | ⓘ Cobaltite | CoAsS |
| As | ⓘ Safflorite | (Co,Ni,Fe)As2 |
| As | ⓘ Sperrylite | PtAs2 |
| Pd | Palladium | |
| Pd | ⓘ Sudburyite | PdSb |
| Pd | ⓘ Ungavaite | Pd4Sb3 |
| Sb | Antimony | |
| Sb | ⓘ Sudburyite | PdSb |
| Sb | ⓘ Ungavaite | Pd4Sb3 |
| Pt | Platinum | |
| Pt | ⓘ Sperrylite | PtAs2 |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- SCAB DomainDomain
- Southern and Central ApplachianAccretionary Complex
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Reeser's Summit, Frogtown, York County, Pennsylvania, USA