| Locality type: | Pit |
| Classification |
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| Species: | Phlogopite |
| Formula: | KMg3(AlSi3O10)(OH)2 |
| Formation: | Primary |
| Comments: | Large essentially black crystals to over 9 cm across and more than 15 cm long in marble associated with tough, massive, dark augite/gahnite rock in the East Ore Vein. Good crystals at the contacts of these rocks. 2008 EDS analysis shows abundant Mg plus much Fe, Zn and Mn; XRD with 10.3 Γ
spacing indicates a phlogopite-3T polytype, probably mixed with some phlogopite-1M, seeing that the (001) reflection is broad ranging down to 9.2 Γ
and the other peaks are sharp (Van King communication 2016). |
| Habit: | stubby to elongated, tapered prismatic with pseudohexagonal outline rarely terminated by pinacoids |
| Colour: | black |
| Quality for species: | Good crystals or rich for species - important (!) |
| Abundance at site: | Very common |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Calcite | β18 photos of Phlogopite associated with Calcite at this locality. |
| Gahnite | β8 photos of Phlogopite associated with Gahnite at this locality. |
| Augite | β1 photo of Phlogopite associated with Augite at this locality. |
| Azurite | β1 photo of Phlogopite associated with Azurite at this locality. |
| Malachite | β1 photo of Phlogopite associated with Malachite at this locality. |
| Rhodonite | β1 photo of Phlogopite associated with Rhodonite at this locality. |
| Diopside | β1 photo of Phlogopite associated with Diopside at this locality. |
| Data |
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| Mineral Data: | Click here to view Phlogopite data |
| Locality Data: | Click here to view Passaic pit (Marshall Mine; Passaic Mine), Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA |
| Photo Gallery | View Gallery (12 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 1028658 |
| Long-form Identifier: | 1:3:1028658:4 |
| GUID (UUID V4): | 8165edfc-4514-40cf-96cd-f103ca81e74b |
| Nearest other occurrences of Phlogopite |
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| 0.2km (0.1 miles) | βSterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA |
| 1.3km (0.8 miles) | βFranklin Quarry (Braens Quarry; Moses Bigelow Quarry; Farber Quarry), Franklin Marble, Franklin, Sussex County, New Jersey, USA |
| 2.9km (1.8 miles) | βFowler Quarry (Nichol Quarry; B. Nicoll Quarry; Nicoll Quarry; Nicol Quarry; Cellate Quarry), Franklin Marble, Franklin, Sussex County, New Jersey, USA |
| 3.7km (2.3 miles) | βFranklin Iron Company Quarry (Pistol Range Quarry; Rifle Range Quarry), Franklin Marble, Franklin, Sussex County, New Jersey, USA |
| 3.8km (2.4 miles) | βBuckwheat dump mineral collecting site, Franklin Mine, Franklin, Sussex County, New Jersey, USA |
| 4.0km (2.5 miles) | βFranklin Mine, Franklin, Sussex County, New Jersey, USA |
| 4.8km (3.0 miles) | βMill site dump, Franklin Mine, Franklin, Sussex County, New Jersey, USA |
| 7.1km (4.4 miles) | βLime Crest Quarry, Franklin Marble, Sparta Township, Sussex County, New Jersey, USA |
| 7.4km (4.6 miles) | βAtlas Quarry (The Quarry), Hardistonville, Hamburg, Sussex County, New Jersey, USA |
| 8.7km (5.4 miles) | βWindsor Quarry (Winsor Quarry), Rudeville, Hardyston Township, Sussex County, New Jersey, USA |
| References |
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Passaic pit, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA