Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites. 0
Durable Rock, Hard Rock 0
Coarse Grained Rock, Fine Grained Rock, Medium Grained Rock, Opaque Rock 0
Black, Brown, Light to Dark Grey, White 0
Decorative Aggregates, Entryways, Flooring, Homes, Interior Decoration 0
As Building Stone, As Facing Stone, Paving Stone, Garden Decoration, Office Buildings 0
As Dimension Stone, Cement Manufacture, Cobblestones, Construction Aggregate, for Road Aggregate 0
Artifacts, Monuments, Sculpture, Small Figurines 0
Cemetery Markers, Creating Artwork 0
Is one of the oldest rock, Typically speckled black and white. 0
Archaeological Significance
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When alkali feldspar is extracted from granite, it changes to granitoid and later, it becomes trondhjemite with quartz as major mineral. 0
Albite, Amphibole, Apatite, Biotite, Feldspar, Hornblade, Ilmenite, Magnetite, Manganese Oxides, Olivine, Plagioclase, Pyroxene, Quartz, Sulfides, Titanite, Zircon 0
NaCl, CaO, MgO, Silicon Dioxide 0
Burial Metamorphism, Cataclastic Metamorphism, Contact Metamorphism, Impact Metamorphism, Regional Metamorphism 0
Biological Weathering, Chemical Weathering, Mechanical Weathering 0
Chemical Erosion, Coastal Erosion, Glacier Erosion, Sea Erosion, Water Erosion, Wind Erosion 0
Medium to Fine Coarse Grained 0
Heat Resistant, Pressure Resistant, Wear Resistant 0
Deposits in Eastern Continents
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Finland, Germany, Italy, Romania, Sweden, Turkey 0
Deposits in Western Continents
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Argentina, Bolivia, Chile, Colombia, Ecuador, Peru 0
Deposits in Oceania Continent
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New Zealand, South Australia, Western Australia 0
Information about Trondhjemite
Rocks are naturally occurring solids which are composed of minerals & have been used by humans since ages. From Stone Age, rocks are used for various purposes. Also, the metals and minerals found in rock play an important role in our life. Get to know all the Trondhjemite Uses. We have provided you with all information about Trondhjemite rock here. Trondhjemite is a leucocratic (light-colored) intrusive igneous rock. It is a variety of tonalite in which the plagioclase is mostly in the form of oligoclase. Trondhjemites are sometimes known as plagiogranites.. Trondhjemite is available in black, brown, light to dark grey, white colors. The streak of a rock is the color of powder produced when it is dragged across an unweathered surface. The streak of Trondhjemite is bluish black. Get to know more about Trondhjemite rock and characteristics of Trondhjemite rock in the next sections.