Black Amethyst
The close-up view of each stone type shows a relatively true image of the crystalline structure and the colouring. This is suitable for grained slabs to a limited extend only. In regard to the colour matching, please take an original sample of the stone from your furniture store as a basis.
Petrographie
In the case of this particular gabbro, revealed only recently, the rock is a medium-grained, full-crystalline, irregular stone consisting entirely of black pyroxenes (metal -bearing silicate minerals) and of bronzite crystals of up to 1cm in size, uniformly distributed throughout the rock. Exceptionally, there may be a magnetite ore present. Bronzite is a silicate mineral with a bronze-hued shimmer which is encountered especially in gabbroid rock.
Petrogenese
Star Galaxy is a magmatite rock which is described as pyroxenite because of its mineralogical make up. A silicate-rich magma solidified beneath the primeval earth crust under highly stable cooling conditions. The result was the homogeneous graining of this recently discovered stone.
| Preisgruppe | 4 |
|---|---|
| Farbe | schwarz |
| Härtegrad | Hartgestein |
| Strukturtyp | Homogene Struktur |
| Outdoor | bedingt geeignet |
| Synonyme | Nero Ametista, Black and Gold, Star Galaxy, Black Galaxy, Nero Galaxy |
| Gruppe | Plutonic rocks - Plutonite |
| Petrographische Zuordnung | Granit |
| Alter | 1.4 billion years (Precambrian) |
| Vorkommen | Indien |
| Neuheit | Nein |
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