Name/Title
CavansiteEntry/Object ID
2004.1.48Description
Assemblage Zone: pegmatite dikes
Chemical Composition: Ca(VO)Si4O10(H2O)4, Hydra
Crystal System: Orthorhombic System
Description: Common Name: cavansite
Group Name: zeolite
Chemistry: Ca(VO)Si4O10(H2O)4
Location: Waghuli, Pune District, India
Description: Bluish teal with white fuzzy crystals around them.
PHYSICAL CHARACTERISTICS:
Color is greenish-blue to ocean blue.
Luster vitreous to pearly.
Transparency transparent to translucent.
Crystal System: Orthorhombic
Crystal Habits radiating acicular crystals forming spherical crystal clusters.
Cleavage perfect in one direction.
Fracture conchoidal.
Hardness 3 - 4
Specific Gravity is approximately 2.33
Streak is blue.
Associated Minerals include zeolites such as stilbite and heulandite as well as calcite, apophyllite , babingtoniteand quartz.
Other Characteristics: larger crystals show an unusual internal reflection.
Best Field Indicators are color, associations, locality and crystal habit.
Fracture: Conchoidal
Hardness: 3 Calcite
Luster: Vitreous
Occurrence: In a brown tu® partly ¯lling a fault ¯ssure (Lake Owyhee State Park, Oregon,
USA); in a vesicular basalt and red tu® breccia, as cavity ¯llings and in calcite veinlets (Chapman
quarry, Oregon, USA); in pores of altered basalt breccia and tu®aceous andesite (Poona district,
India).
Notable Occurrence is Poona, India and Columbia Co. and Malheur Co., Oregon, USA.
Rock Type: Sedimentary
Specific Gravity: 2.1-2.5
Streak: blue
Variety: Cavansite is a beautiful and rare mineral. It was only discovered in the last 30 years and is found in only a few locallities. By far the best crystals come from the famous zeolite quarries in Poona, India. Crystal aggregates consist of spherical rosettes with jutting pointed crystals. The deep blue color of even the smallest cavansite crystals is truly amazing. A beautiful blue cavansite rosette perched on top of the muted colors of the typical zeolites makes a dramatic crystal association. Cavansite's rarity and beauty explain its recent popularity.Collection
Suomynona Mineral Collection, Suomynona CollectionAcquisition
Accession
2004.1Source or Donor
Suomynona Mineral CollectionAcquisition Method
DonationDimensions
Width
3-1/4 inDepth
2 inLength
6-1/2 inWeight
1.39 ozDimension Notes
Dimension taken at widest pointsLocation
Location
Display Case
DS-6Room
Delmar Smith HallBuilding
Crater Rock MuseumCategory
PermanentMoved By
Curtis GardnerDate
May 24, 2023Notes
Added current locationLocation
Drawer
front rightShelf
bottom tier, bottom tierWall
east wallBuilding
Freida L Smith HallCategory
PermanentMoved By
Scott LonganDate
August 25, 9Location
Container
RightDrawer
Top ShelfShelf
LeftCabinet
Case #14Wall
NorthBuilding
Freida L Smith HallCategory
Permanent
