Property | Examples | Deposit | Unit | Photo no | |
Reflectivity (R%) | Reference minerals sl-gn-cp-py-as carbonates + silicates (holes + araldit) |
Rammelsberg | A | ||
Dale Head North | A | ||||
Color | white (reinweiss) | gn, as | Dale Head North | A | |
gn | Rammelsberg | A | |||
weakly colored and grey (wenig farbig) |
sl, py, marcasite | Dale Head North | A | ||
sl, py, marcasite | Rammelsberg | A | |||
magnetite | Ducktown/Faro | B | |||
colored (farbig) |
cp, pyrrhotite | Dale Head North | B | ||
cp, enargite | Rammelsberg | B | |||
covellite | Yauricocha | B | |||
pyrrhotite | Ducktown (Chisel) | B | |||
Bireflexion | only R.% | carbonates | Rammelsberg | B | |
R.% + change of color | covellite | Yauricocha | B | ||
pyrrhotite | Dale Head North | B | |||
pyrrhotite | Ducktown/Faro | B | |||
Hardness (relative) wear resistance (Schleifhärte) => polishing scratches (Schleifkratzer) pull up resistance (Ritzhärte) => Kalb fringe (Lichtlinie) |
cp, gn vers py, as | Dale Head North | C | ||
cp, gn vers py | Rammelsberg | C | |||
sl against mt | Faro | C | |||
sl against sulfosalts | Wiesloch | C | |||
Internal Reflexions (IR) | sl | Dale Head North | C | ||
sl | Wiesloch | C | |||
carbonates, silicates | Rammelsberg | C | |||
Anisotropy effects with crossed nichols |
marcasite (++) | Rammelsberg | B | ||
covellite (+++) | Yauricocha | B | |||
enargite, luzonite (++) | Yauricocha | B | |||
pyrrhotite (++) | Ducktown/Faro | B | |||
Dale Head North | B | ||||
arsenopyrite (++) | Dale Head North | B | |||
cp (+) | Dale Head North | B | |||
Yauricocha | |||||
Rammelsberg | B |
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