This specimen has a complete coating of thin, tabular, colourless bertrandite crystals and yellow muscovite, associated with some irregular pyrite crystals and pale blue fluorapatite. Details are best viewed under a microscope
AN_468
1 Item
Data sheet
Locality
Akchatau, Karaganda Region, Kazakhstan
Size category
Small cabinet
Size (cm)
6.5 x 5.5 x 3
Weight
66 g
Formula
Be4Si2O7(OH)2
Properties
Vitreous, pearly lustre; colourless; bladed habit
This specimen has a complete coating of thin, tabular bertrandite crystals and yellow muscovite Akchatau, Karaganda, Kazakhstan