Calcite Group

The Calcite group is composed of minerals that have flat triangular shaped carbonate ions (CO₃).  They have perfect cleavage and exhibit strong double refraction.  Minerals in this group can partially or fully replace one another.  

Objects: Calcite Group Export: JSON - XML - CSV Clay Seals and Sealings

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• Clay Seals and Sealings

Object	U Number	Museum Number (UPM Date Reg Number)	Museum Number (BM Registration Number)	Museum Number (UPM B-number)	Description (Catalog Card)
	(none)	30-12-58	(none)	(none)	Unknown
	(none)	30-12-63	(none)	(none)	Unknown
	(none)	30-12-64	(none)	(none)	Unknown
	(none)	30-12-65	(none)	(none)	Unknown
	(none)	(none)	(none)	B15275	Unknown
	(none)	(none)	(none)	B16318	Unknown
	(none)	(none)	(none)	B16329	Unknown

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• 7 of 32 Objects

Apatite - Aragonite - Chlorite - Dolomite - Feldspar - Gypsum - Magnesite - Pigment - Serpentine - Semi-precious

Alabaster - Calcite