| Locality type: | Mine |
| Classification |
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| Species: | Millerite |
| Formula: | NiS |
| Comments: | Principal ore mineral here. |
| Habit: | crusts of sub-parallel, acicular crystals forming botryoidal surfaces. |
| Colour: | Brass |
| Luminescent properties: | None. |
| Quality for species: | Excellent - world class for species or very significant. (!!) |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Siderite | 2 |
| - var Sphärosiderite | 2 |
| Data |
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| Mineral Data: | Click here to view Millerite data |
| Locality Data: | Click here to view Gap Mine, Bart Township, Lancaster County, Pennsylvania, USA |
| Photo Gallery | View Gallery (13 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 7699 |
| Long-form Identifier: | 1:3:7699:9 |
| GUID (UUID V4): | 0 |
| Nearest other occurrences of Millerite |
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| 25.3km (15.7 miles) | ⓘWood's Chrome Mine, Texas, Little Britain Township, Lancaster County, Pennsylvania, USA |
| 27.4km (17.0 miles) | ⓘLine pit (Lowe's Mine), Cecil County, Maryland, USA |
| 27.4km (17.0 miles) | ⓘLine pit (Lowe's Chromite Mine), Fulton Township, Lancaster County, Pennsylvania, USA |
| 43.6km (27.1 miles) | ⓘCornwall Mines (Cornwall Iron Mine), Cornwall Borough (Cornwall), Lebanon County, Pennsylvania, USA |
| 70.0km (43.5 miles) | ⓘRose's Quarry, Gladwyne, Lower Merion Township, Montgomery County, Pennsylvania, USA |
| 70.5km (43.8 miles) | ⓘGladwyne Quarries, Gladwyne, Lower Merion Township, Montgomery County, Pennsylvania, USA |
| 70.7km (43.9 miles) | ⓘPrince's Soapstone Quarry, Lafayette Station, Philadelphia County, Pennsylvania, USA |
| 87.6km (54.4 miles) | ⓘUnnamed Chromite prospect 13 [of Pearre & Heyl], Owings Mills, Baltimore County, Maryland, USA |
| References |
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Gap Mine, Bart Township, Lancaster County, Pennsylvania, USA