Pyrargyrite mass; McLaughlin mine, CA, USA, Gordon Nelson Collection; min
Miniature specimen Pyrargyrite mass from the McLaughlin mine, CA, USA, Gordon Nelson Collection.
Rich dense masses, grading to crystalline, of this rare silver ore in/on quartz matrix. Actually, a mixture of Pyrargyrite & Miargyrite. A classic from this long-reclaimed California locality. Ex Gordon Nelson collection. He was a geologist at this mine for years.
Picture shows sample. Item may differ in exact size, shape and colour from the sample image!
This table is for general information and orientation, although the sizes of the stones may vary. In addition, this specification is handled differently from region to region.
| Sizes | means? | approx. Sizes | |
| TN/mm | Micromount (TN=Thumpnail) | everything fitting in a TN Perky box or a MM box | max. 1 in |
| Min | Miniature specimen | will not fit an TN or MM box anymore | ≈ 1.6 - 2 in |
| Scab | small cabinet specimen | app. a third to half a hand size | ≈ 3 - 3.5 in |
| Cab | cabinet specimen | full hand size | ≈ 4.5 - 6 in |
| large Cab | large cabinet specimen | app. 2 hand sizes | ≈ 8 - 12 in |
| very large Cab | very large cabinet specimen | everything larger than the sizes before | |
Abbreviations commonly used in mineralogy.
| Abbreviation | Meaning |
| xl | single crystal, possible with matrix |
| xls | noticeable crystals |
| (xl) | embedded or damaged |
| (xls) | embeddet or damaged |
| MASS | massive and/or amorphous pieces |
| TYP | type locality of the original description |
| SWUV | shortwave-UV-reaction |
| UV | ultraviolet reaction |
| SC | self-collected |
| U | unique (single unique piece) |
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| shipment-weight, NOT netto weight (kg) | 0.500000 |
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