metamorphic
Connemara Marble
Calcitic Marble / Serpentinite composite
Hardness: 3-4 on Mohs scale; Color: Shades of green, pale green, and white; Luster: Vitreous to greasy; Structure: Massive, interlocking crystalline matrix with veins of serpentine and calcite; Specific Gravity: 2.7 - 2.8
- Hardness
- 3-4 on Mohs scale
- Color
- Shades of green, pale green, and white
- Luster
- Vitreous to greasy
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Physical properties
Hardness: 3-4 on Mohs scale; Color: Shades of green, pale green, and white; Luster: Vitreous to greasy; Structure: Massive, interlocking crystalline matrix with veins of serpentine and calcite; Specific Gravity: 2.7 - 2.8
Formation & geological history
Formed during the Precambrian era, approximately 600-700 million years ago, through the regional and contact metamorphism of ancient limestone deposits mixed with serpentine minerals under intense heat and pressure.
Uses & applications
Used extensively in ornamental stone carving, architectural decoration, countertops, and wire-wrapped jewelry.
Geological facts
Often referred to as 'Ireland's gemstone', Connemara marble is world-renowned for its distinct banded green coloration caused by the presence of serpentine mixed with calcite.
Field identification & locations
Found predominantly in the Connemara region of western Ireland. Identify by its characteristic mottled green hues, relative softness, and effervescence when tested with weak acid due to the calcium carbonate content.
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