Object ID:
1919.2.53
Collection:
Natural History-Rand, Helen
Object Name:
Agate
Dimensions:
H-2.8 W-3.5 L-4.5 cm
Description:
Bands of chalcedony, microcrystalline variety of quartz
Round nodule with brown, green, and white layered bands.
Round nodule with brown, green, and white layered bands.
Found:
Dakota
Fracture:
conchoidal
Chemical Composition:
Silicon oxide
Crystal System:
Hexagonal
Specific Gravity:
2.6
Hardness:
07
Luster:
Vitreous
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