Agate

UNB-2016-0178Rocks » Mineraloid

Description

White Quartz with red bands of Moss Agate. Agate (SiO2) is a variety of Chalcedony (Quartz (SiO2)). Bright green with spots of red is considered Agate while bands would be Moss Agate. Lustre can be waxy, vitreous or dull and streak is white and hardness is 7. Chalcedony is microcrystalline variety of Quartz but can also be mammillary, compact or banded.

Specifications

Object nameAgate
IDUNB-2016-0178
Legal statusPermanent collection
CategoryRock
Classification
Rock group:
Mineraloid
CompositionSilicates
OriginUnknown
Pieces1
PartialYes
Measurements
  • 16.5cm x 12.5cm x 2.5cm

Publications

  • Chesterman, C.W. 1979. Audubon Society, Field Guide to North American Rocks and Minerals. Knopf.