Name/Title
StibniteEntry/Object ID
78.62.112Description
Chemical Composition: Sb2S3
Crystal System: Orthorhombic System
Description: Common Name: Stibnite/Chalcopyrite
Group Name:
Chemistry: Sb2S3
Location: New Mexico
Description: Mettilic gold and silver colored crystals with some pale tan mineral.
PHYSICAL CHARACTERISTICS:
Color is steel gray to silver.
Luster is metallic.
Transparency crystals are opaque.
Crystal System is orthorhombic; 2/m 2/m 2/m
Crystal Habits include bladed or acicular crystals often bent or curved due to twinning, also granular and massive.
Cleavage is perfect in the lengthwise direction.
Fracture is irregular.
Hardness is 2
Specific Gravity is approximately 4.6+ (average for metallic minerals)
Streak is a dark gray.
Other Characteristics: striated lengthwise sometimes deeply, luster brighter on cleavage surfaces and crystals slightly flexible.
Associated Minerals include quartz, calcite, gold, arsenopyrite and other sulfides.
Best Field Indicators are crystal habit, softness and flexibility
Fracture: irregular
Hardness: 2 Gypsum
Luster: Metallic
Occurrence: Small deposits of stibnite are common, but large deposits are rare. It occurs in Canada, Mexico, Peru, Japan, China, Germany, Romania, Italy, France, England, Algeria, and Kalimantan, Borneo. In the United States it is found in Arkansas, Idaho, Nevada, California, and Alaska.
Notable Occurrences include Hunan province, China; Japan; Germany; Brazil; Peru and South Africa.
Rock Type: Sedimentary
Specific Gravity: 4.6
Streak: dark greyCollection
Delmar Smith Mineral CollectionAcquisition
Accession
78.62Source or Donor
Delmar Smith Mineral CollectionAcquisition Method
DonationDimensions
Width
1 inDepth
1/2 inLength
1-1/4 inDimension Notes
Dimension taken at widest pointsLocation
Location
Shelf
CS-D-5Room
Curation StorageBuilding
Crater Rock MuseumDate
January 24, 2024Location
Cabinet
K-1 rearWall
NorthBuilding
Storage (old gift shop upstairs)Category
Permanent