Ireland’s unofficial national gemstone, Connemara marble is a calcite marble that contains large amounts of serpentine. Green in color, its name comes from the locality in western Ireland where it is mined. Mining of this ornamental rock is one of Ireland’s oldest industries and there’s even a visitor’s center devoted to this decorative stone. The perfect stone to represent Ireland, which has long been known as the ‘Emerald Isle’, Connemara marble has been carved into a wide variety of decorative items throughout history. Known since the Stone Age, Connemara marble has also been used over the centuries as a medium of exchange.
Connemara Marble Classification
||Connemara Marble |
Connemara Marble Characteristic Physical properties
The term onyx marble is sometimes used to describe a rock made up of alternating layers of different colored calcite or aragonite. It should not be confused with onyx which is a banded variety of chalcedony. It was referred to as “alabaster” in ancient times, but in modern usage this term is only used to describe a variety of gypsum.
Onyx Marble Classification
||Onyx Marble |
Onyx Marble Optical Properties
Onyx Marble Characteristic Physical properties
||Alternating color bands, often dyed. |