Phosgenite from
Loudville Lead Mines (Manhan Lead-Silver Mine; Southampton Lead Mine; Northampton Lead Mine), Easthampton, Hampshire County, Massachusetts, USA
| Locality type: | Mine | |
| Classification | ||
|---|---|---|
| Species: | Phosgenite | |
| Formula: | Pb2CO3Cl2 | |
| Comments: | Ref: C. U. Shepard: On scheeletine; Am Jour. Sci., 2nd series. Vol XLI, p.215., 1866 "The original mineral described by Meade can not have been phosgenite, which dissolves with effervescence in dilute nitric acid. Almost all the points given in the description of Meade agree with Anglesite. The crystals of anglesite found here are often superficially green from copper. It is described further as a vitreous, nearly the luster of a precious stone, glassy fracture, brittle, melts to orange mass with lead globules, formed on galena, and but slightly acted upon by nitric acid. All these points agree with anglesite, and only the crystalline form remains; “in cubic form terminated by tetrahedral prisms”. It will be noted further that no one has ever found the mineral since Meade’s description, but all have copied him. I found in 1885 (in the Clark collection of Smith College, which has the finest series of crystals from the Loudville mine) specimens which agreed also in crystallization. They are an exceptional form of anglesite and appear in grouped prismatic aggregates up to 10 mm in length, surrounded by acute pyramids, and resembling acicular aragonite. At times the aggregated prisms are finely striate longitudinally, changing the resinous lister to satiny. It is translucent, colorless to slightly amber. A fragment of a crystal treated with HNO3 was only slightly affected. Before the blowpipe it turns yellow, decrepitates, and with soda gives lead globules and test for sulphur." | |
| Confirmation | ||
| Validity: | Erroneously Reported | |
| Data | ||
| Mineral Data: | Click here to view Phosgenite data | |
| Locality Data: | Click here to view Loudville Lead Mines (Manhan Lead-Silver Mine; Southampton Lead Mine; Northampton Lead Mine), Easthampton, Hampshire County, Massachusetts, USA | |
| Data Identifiers | ||
| Mindat Occurrence Record ID: | 243091 | |
| Long-form Identifier: | 1:3:243091:1 | |
| GUID (UUID V4): | 30a09f41-7ea2-45ec-a46d-c7c0bb9c78bc | |
| References | ||
