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Synonyms: Black Ametist, Black Ametista, Black Amethyst, Black Amethysta, Black and Gold, Black Galaxi, Black Galaxy, Black Galaxy Granite, Black Gold Sands, GA 902, Galaxi Black, Galaxy Black, Galaxy Gold, Galaxy Star, Nero Ametista, Nero Galassia, Nero Galaxy, Nero Star Galaxi, Nero Star Galaxy, Star Galaxi, Star Galaxy Black, Star Gallaxy, WG203
Origin: India, Chimakurti, Andhra Pradesh
Technical and physical characteristics
Bulk density: 2,83 - 2,85 kg/dm³
Bending strength: 19,13 - 20,11 N/mm²
Compression breaking load: 200,1 - 203,1 N/mm²
Water absorption: 0,08 - 0,12 vol.-%
Frost resistant
Polish constant
This stone internationally may be nominated as a granite however in the area of application of the European Standard (EN) this stone must be nominated as gabbro.
A fine to medium-grained, black gabbro with golden-yellow sparkling broncite scales.
Gabbro: Gabbro is a dark, coarse-grained, intrusive igneous rock chemically equivalent to basalt. It is a plutonic rock, formed when molten magma is trapped beneath the Earth's surface and cools into a crystalline mass.
Local Geology:
Comment: