Name/Title
AgateEntry/Object ID
2008.1.15Description
Chemical Composition: Si O2
Crystal System: Hexagonal
Description: Large slab of Brazilian Agate
Common Name: Banded agate
Age:
Location data: Southern Brazil, South America
Description: Large polished slab, banded colors going from brown, tan, beige, white, clear with crystal presences
Size: 10.5" X 5.75" width 1"
Type of Fossils Present: None
Grain Size: Fine
Hardness: 7 Quartz
Luster: Glassy
Occurrence: Brazilian agate, which is found as sizable geodes of layered nodules. These occur in brownish tones interlayered with white and gray. Quartz forms within these nodules, creating a striking specimen when cut opposite the layered growth axis. It is often dyed in various colors for ornamental purposes.
Pressure: Moderate
Rock Color: Medium
Rock Origin: Terrestrial
Rock Type: Sedimentary
Specific Gravity: 2.6
Surface Process: Not apparent
Temperature: Moderate
Texture: microcrystaline
Variety: Agate is a microcrystalline variety of quartz (silica), chiefly chalcedony, characterised by its fineness of grain and brightness of color. Although agates may be found in various kinds of rock, they are classically associated with volcanic rocks but can be common in certain metamorphic rocksCollection
Oren Kellenbeck CollectionAcquisition
Accession
2008.1Source or Donor
Oren Kellenbeck CollectionAcquisition Method
GiftOther Names and Numbers
Other Number
Other Number: 2008.1.15Dimensions
Dimension Notes
Dimension taken at widest pointsLocation
Location
Drawer
2nd shelfShelf
Right side, Right sideWall
Northeast wallRoom
Main Room, Mentzer HallBuilding
Crater Rock MuseumCategory
PermanentMoved By
Wendy MondryDate
February 11, 2010Location
Cabinet
ToteBuilding
Storage (old gift shop upstairs)Category
PermanentLocation
Shelf
bottom left, bottom leftWall
far rightRoom
Main, Mentzer HallBuilding
Crater Rock MuseumCategory
Permanent
