NiAsS
Gersdorffite has been found embedded in dark-gray, fine-grained hornfels.
PHYSICAL CHARACTERISTICS:
Color is usually silver-white to steel-gray.
Luster is metallic.
Diaphaneity is opaque.
Crystal System is isoclinic; 3.
Crystal Habits include small metallic grains.
Cleavage {001} is perfect.
Fracture is uneven.
Hardness is 5.5
Specific Gravity is approximately 5.9 g/cm
Streak is gray-black.
Associated Minerals include calcite and löllingite.
Distinguishing Features: Color and luster.
Origin: Named in 1843 for Johann von Gersdorff (1781-1849),
owner of the nickel mine at Schladming, Styria, Austria where
the mineral was discovered.
CLASSIFICATION:
Dana System
# 2.12.3.2
Strunz Classification
# II/D.18-20
REFERENCES:
MinRec 21:312 (1990), Dana 8:125 (1997)
DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:
MSH
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