Name/Title
ChalcanthiteEntry/Object ID
2009.62.201Description
Description: Chemistry: CuSO4 - 5H2O
Class: Sulfates
Group: Chalcanthite
PHYSICAL CHARACTERISTICS:
Color is a bright and deep blue.
Luster is vitreous.
Transparency: Crystals are transparent to translucent.
Crystal System is triclinic; bar 1.
Crystal Habits include rare, individual, natural crystals showing well formed slanted prismatic, tabular or lense-shaped forms, more commonly aggregated into columnar, curved, parallel growth structures. Also found as encrusting, stalactitic and granular masses and as vein filling deposits.
Cleavage is poor (basal).
Fracture is conchoidal.
Hardness is 2.5
Specific Gravity is approximately 2.2 - 2.3 (noticeably below average).
Streak is pale blue to colorless.
Best Field Indicators are crystal habit, low density, associations, solubility in water, taste and color.
Occurrence: Notable Occurrences include Chuquicamata and El Teniente (Sewell), Chile; Minas de Rio Tinto, Spain; England; Germany and Ireland and in the United States, Bigham Canyon, Utah; Ducktown, Tennessee; Imlay, Pershing County, Nevada; Arkansas; California; New Mexico and Arizona.
Variety: Chalcanthite (Hydrated Copper Sulfate)
Jokokuite (Hydrated Manganese Sulfate)
Pentahydrite (Hydrated Magnesium Sulfate)
Siderotil (Hydrated Iron Sulfate)Collection
RAGM Mineral CollectionAcquisition
Accession
2009.62Source or Donor
Museum Collection of MineralsAcquisition Method
DonationLocation
Location
Display Case
FS-4-ARoom
Frieda Smith HallBuilding
Crater Rock MuseumCategory
ExhibitDate
January 4, 2024Location
Container
RightDrawer
2nd ShelfShelf
Right, RightWall
East WallBuilding
Freida Smith HallCategory
PermanentMoved By
Steve MillerDate
June 29, 2012Location
Container
RightDrawer
2nd TierShelf
EastWall
EastRoom
Delmar Smith HallBuilding
Crater Rock MuseumCategory
PermanentMoved By
Joshua EspongeDate
November 13, 2009Location
Container
RightDrawer
2nd ShelfShelf
RightCabinet
Case# 60Wall
East WallRoom
Delmar Smith HallBuilding
Crater Rock MuseumCategory
Permanent
