Basis of Name
Commercial names have different origins. The majority of names are derived from a geographic area or colour. The geographic site could be the quarry place or a nearby town or the state. The colour is described in English, Italian, Spanish or other languages. Some stones have their names according to colours of precious stones, plants or animals. This column may help in a more intuitive understanding of stones names & origin.Explanation of some terms in the text above:
K= Potassium, Mg= Magnesium, Fe= Iron, Al= Aluminium, Na= Sodium, Ca= Calcium
Biotite - dark mica K, Mg, Fe, Al Silicate
Cleavage - the tendency of some mineral crystals to break along definite planes of weakness
Conglomerate - sedimentary rock composed of rounded fragments over 2 mm
Cordierite - mineral - Mg, Al Silicate
Feldspars - light minerals - K, Na, Ca Alumosilicates
Garnet - mineral of red to brown colour Fe, Mg, Ca, Al Silicate
Hornblendes (Amphiboles) - group of dark minerals Ca, Na, Mg, Fe, Al Silicates
K feldspars - orthoclase or microcline minerals - K Alumosilicates
Micas - scales minerals muscovite and biotite
Mohs Hardness - To a relative scale of ten minerals arranged in order of increasing hardness
Muscovite - light mica K, Al Silicate
Olivine - dark mineral Mg, Fe Silicate
Oriented granites - where columnar or tabular minerals are distributed according to a certain orientation
Petrography - branch of geology concerned with rock description
Plagioclases - minerals type of feldspars - Na, Ca Alumosilicates
Plutonic rocks - formed by crystalization from magma under earth`s surface in large massifs
Porphyritic - texture in which larger crystals or grains occur in smaller ones
Pyroxenes - group of dark minerals - Ca, Mg, Fe, Al Silicates
Quartz - mineral - silicon oxide
Schlieren - texture with discontinuous almost parallel bands
Translucent - light passes through the mineral but the object viewed is not clearly outlined
My faculty is able to provide the following services:
1. determination of petrographic name
2. petrographic description
3. mineral composition
4. chemical composition
5. physical mechanical properties.
More resources:
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Tile countertops are popular in country-style kitchens and are durable materials. However, all tile has grout lines, which can cause problems. Grout soils very easily and will require frequent cleaning.
Marble Coffee Tables
Natural Stone is turning up more and more often in combination with furniture, e.g. in the kitchen surface, in wash basins, bathrooms, or coffee tables.
Kitchens New Jersey
Tile countertops are popular in country-style kitchens and are durable materials. However, all tile has grout lines, which can cause problems. Grout soils very easily and will require frequent cleaning.
Marble Coffee Tables
Natural Stone is turning up more and more often in combination with furniture, e.g. in the kitchen surface, in wash basins, bathrooms, or coffee tables.