Name/Title
CarrolliteEntry/Object ID
2004.1.129Description
Chemical Composition: Cu(Co,Ni)2S4
Crystal System: Cubic or Isometric S
Description: Common Name: Carrollite (named after the type locality in Carroll County, Maryland, USA.)
Group Name: Linnaeite group
Chemistry: Cu(Co,Ni)2S4 Copper Cobalt Nickel Sulfide
Location: Kamfundwa Mine, Kambove, Congo
Description: single dark crystal with metallic lustre
Occurrences of Carrollite: In the USA, in the Patapsco mine, Finksburg, and the Mineral Hill mine, Sykesville, Carroll Co., Maryland
Geological Setting: In hydrothermal vein deposits
PHYSICAL CHARACTERISTICS:
Lustre: Metallic
Diaphaneity (Transparency): Opaque
Colour: Light Grey to Steel Grey
Comment: Tarnishes to copper red or violet grey
Hardness (Mohs): 4½ - 5½
Hardness (Vickers): VHN100=507 - 586 kg/mm2
Cleavage: Imperfect/Fair
Imperfect on {001}
Fracture: Irregular/Uneven, Sub-Conchoidal
Density (measured): 4.5 - 4.8 g/cm3
Density (calculated): 4.83 g/cm3
Crystal System: Isometric
Hardness: 5 Apatite
Luster: Metallic
Occurrence: Geological Setting: In hydrothermal vein deposits, with other sulfide ore or sulfosalts
Specific Gravity: Irregul
Texture: Crystaline to mircocrystalineCollection
Suomynona Mineral CollectionAcquisition
Accession
2004.1Source or Donor
Suomynona Mineral CollectionAcquisition Method
DonationDimensions
Width
1 inDepth
1 inLength
1-1/4 inDimension Notes
Dimension taken at widest pointsLocation
Location
* Untyped Location
Mentzer Hall, MH-11Room
Mentzer HallBuilding
Crater Rock MuseumCategory
PermanentDate
January 11, 2023Notes
Top shelf. In the middle.Location
Room
Neil JohnsonBuilding
Attic StorageCategory
PermanentMoved By
Lehman R.Date
August 26, 2009Location
Container
LeftDrawer
Front Row / 2nd ShelShelf
Left, LeftWall
NorthBuilding
Founders RoomCategory
PermanentMoved By
Lehman R.Date
August 26, 2009Location
Shelf
LeftCabinet
Case # 7Room
Mentzer HallBuilding
Crater Rock MuseumCategory
Permanent
