Synonyms Stones can have many aliases. This is due to language differences, supplier choice, coloquial trends or slang, or sometimes errors and ambiguity between rocks. Read more here. |
Tan Braun |
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Category Commercial classification sometimes differs to the scientific, geological designation. In particular, some limestones are deemed marble especially if they take a high polish. Read more here. |
Granite |
Petrographic assignment | Plutonic Granite |
Age | more than 600 million years (Pre-Cambrian) |
Colouring minerals: | Red-brown, Alkali feldspar |
Average hardness MOHS is the standard scale of hardness for minerals 1-10, with 10 being the MOHS of diamond. We also use the broad terms Hard and Soft for simplicity. Read more here. |
6 (Hard) |
Origin | India |
The images of each stone aim to give a faithful representation of the structure and colouring. The close-ups are generally taken from a sample around 100mm in height to get the detailing of the grain and crystals. The slab images are usually between 2000x1000mm and 3000x1900mm approximately, to give a more overall picture of the pattern.
This is for guidance only, when seeking a specific pattern and colour matching, please obtain a sample or arrange for the slab to be viewed in person. When placing the order, you may require a photo of the actual slab before production, the colour and character can vary significantly even throughout the same block within natural materials. Also monitor calibration, camera settings and lighting can all effect how the materials are perceived.
A black-brown cordieritefels with big, shapeless, brown-red feldspar crystals.
Popular and typical usage
Petrology: Dark red-brown, very coarse crystalline alkali feldspar, red colours along the gap cracks. The dark background is brown feldspar, black biotite and amphibole. Quartz appears in transparent grains.
Petrogenesis: This rock is from the Pre-Cambrian mountain range of the Indian sub-continent. There melts intruded into the earth crust and solidified in a depth of several kilometres under the surface. The erosion processes since then uncovered the basic mountain range and made the originally lower levels of the earth crust available for quarrying.
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