drysdallite
Sign in to saveAlso known as IMA1973-027
Drysdallite is a rare molybdenum selenium sulfide mineral with formula Mo(Se,S)2. It crystallizes in the hexagonal system as small pyramidal crystals or in cleavable masses. It is an opaque metallic mineral with a Mohs hardness of 1 to 1.5 and a specific gravity of 6.25. Like molybdenite it is pliable with perfect cleavage.
In the Vinony graph
Within Vinony's link graph, drysdallite is referenced by 7 other articles, and connects out to Mohs scale of mineral hardness, relative density and Zambia.
It sits within the topics Hexagonal minerals, Minerals in space group 194 and Molybdenum minerals.
Its subject is documented across 6 Wikipedia language editions.
Wikidata facts
- Image
- Drysdallite.jpg
Show 6 more facts
- Nickel-Strunz 9th edition (updated 2009)
- 2.EA.30
- Nickel-Strunz '10th ed', review of (9th ed/ 2009 update)
- 2.EA.30
- chemical formula
- MoSe₂
- Commons category
- Drysdallite
- IMA Mineral Symbol
- Dry
- Strunz 8th edition (series ID, updated)
- II/C.10
via Wikidata · CC0
~1 min read
Encyclopedic overview
1 sectionsContents
- References
Drysdallite is a rare molybdenum selenium sulfide mineral with formula Mo(Se,S)2. It crystallizes in the hexagonal system as small pyramidal crystals or in cleavable masses. It is an opaque metallic mineral with a Mohs hardness of 1 to 1.5 and a specific gravity of 6.25. Like molybdenite it is pliable with perfect cleavage.
It was first described in 1973 for an occurrence in an oxidized uranium deposit near Solwezi, Zambia. It was named for Alan Roy Drysdall, the director of the Zambian geological survey.
Excerpted from Wikipedia’s “drysdallite” article, available under the CC BY-SA 4.0 licence.