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-11Category
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
