Rocks

Radiolarite is a type of sedimentary rock that primarily consists of the microscopic remains of radiolarians, which are single-celled marine microorganisms belonging to the...

Boji Stones, also known as Moqui Marbles or Shaman Stones, are small, round, naturally occurring stones found in the Navajo Sandstone formation of Utah...

Slate is a fine-grained, foliated metamorphic rock this is created via the alteration of shale or mudstone by means of low-grade local metamorphism. It is famous for a extensive form of makes use of such as roofing, floors, and flagging due to its sturdiness and appealing look.

Monzonite is a type of igneous rock that falls within the category of intrusive or plutonic rocks. It is primarily composed of minerals such...

Chalk and limestone are two of the most common carbonate rocks on Earth, yet they represent very different geological histories, textures, and engineering behaviors....

Trachyte, light-coloured, very fine-grained extrusive igneous rock that is composed chiefly of alkali feldspar with minor amounts of dark-coloured minerals such as biotite, amphibole, or pyroxene. Compositionally, trachyte is the volcanic equivalent of the plutonic (intrusive) rock syenite. Most trachytes show porphyritic texture in which abundant,

Lamprophyre is ultrapotassic igneous rock that is occurring as dikes, lopoliths, loccoliths, stocks and small intrussion. It is alkaline silica-undersaturated mafic or ultramafic rocks...

Chert is a microcrystalline or cryptocrystalline sedimentary rock cloth composed of silicon dioxide (SiO2). It takes place as nodules, concretionary hundreds, and as layered deposits. Chert breaks with a conchoidal fracture, often producing very sharp edges. Early people took advantage of the way chert breaks and used it to fashion cutting equipment and weapons. The name "flint" is also used for this fabric.

Mudstone is a really pleasant-grained sedimentary rock consisting of a aggregate of clay and silt-sized particles. Terms including claystone and siltstone are often used in location of mudstone, although these consult with rocks whose grain length falls inside a good deal narrower stages and underneath near exam those are frequently technically mudstones. Shale is frequently used to explain mudstones that are difficult and fissile (wreck along bedding planes). Marl is regularly used to explain carbonate-rich tender mudstones.

Hornfels is a fine-grained metamorphic rock These properties are because of first-class grained non-aligned crystals with platy or prismatic behavior. Hornfels is the group designation for a series of contact metamorphic rocks which have been baked and indurated by means of the warmth of intrusive igneous loads and had been rendered massive, difficult, splintery, and in a few cases exceedingly tough and sturdy.

The Geological Story of Energy Trapped in Sedimentary EnvironmentsOil shale may appear at first glance as an ordinary dark-colored sedimentary rock. It's finely layered,...

The Story of How Burning Magma Can Be This LightYou pick up a stone. It's porous. Like a sponge. And then you notice: It's...