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Glendonite

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PDM805043

Glendonite

Floater

Description Tabs

Description
Locality: 
Olenitsa River, White Sea Coast, Murmansk Oblast, Russian Federation
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 3.2 × 3.2 cm
Description

Floater group of orange-brown interpenetrated calcite crystals (variety glendonite), that has been considered traditionally as pseudomorphs after ikaite. However data reported by Rogov and Zakharov (2010) indicate that the glendonites probably formed in deep-water facies and the overall paleoclimate could have reflected a period of high-frequency climate oscillations. Also Geptnera, et al. (2014) have shown that glendonites could be formed with the contribution of bacterial communities.

This specimen is floater and undamaged and it was acquired in 1993 by J. Muizebelt.

Rogov, M., and Zakharov, V. (2010). Jurassic and Lower Cretaceous glendonite occurrences and their implication for Arctic paleoclimated reconstructions and stratigraphy. Earth Science Frontiers, 17, 8, 345-347.

Geptnera, A.R. Vetoshkinab, O.S. and Petrovaa, V.V. (2014). New Data on the Composition of Stable Isotopes in Glendonites of the White Sea and Their Genesis. Lithology and Mineral Resources, 49, 6, 473–490.

Mineral Data
What's on the rock

Glendonite

Variety Of: 

Calcite

Formula: 
CaCO3
Strunz: 
5.AB.05
Hardness: 
3.0
Hardness: 
0.0

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