What is a concretion medical term?

Medical Definition of concretion : a hard usually inorganic mass (as a tophus) formed especially from mineral salts in a living body.

Is concretion a real word?

the act or process of concreting or becoming substantial; coalescence; solidification.

Are concretions valuable?

Generally, calcareous concretions are valued much like pearls. Brighter colors and stronger saturations command higher prices. Rounds and ovals are more desirable, and other shapes are judged based on how symmetrical they appear. Smoother surfaces, higher luster, and larger sizes also increase value.

What is cordis in English?

adjective. (in prescriptions) of the heart.

How are concretions formed?

Concretions form inside sediments before they harden into rocks, when they are still soft, as minerals within a sediment precipitate, sometimes in successive layers around a nucleus such as a shell or pebble. … If the planes curve around the concretion, it probably formed early after the deposition of the sediment.

What does Concreative mean?

The process of aggregating or coalescing into a mass. A solid, hard mass formed by a process of aggregation or coalescence.

How do you break open a concretion?

The best method to open concretions is to alternately freeze and thaw them. Put the concretions in a bucket of water and allow them to soak for several days so the water thoroughly penetrates the concretion. Then, place the bucket of concretions in a freezer.

How do you identify concretions?

A concretion consists of the same material as the rock around it, plus the cementing mineral, whereas a nodule (like flint nodules in limestone) is composed of different material. Concretions can be shaped like cylinders, sheets, nearly perfect spheres, and everything in between. Most are spherical.

Do concretions contain fossils?

Concretions are fascinating to geologists and rockhounds alike. All over the world, well-preserved fossils and crystals are frequently been found inside these roughly spherical rocks. … Some of those fossils even show larger fish swallowing the smaller ones.

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What does a concretion look like?

Concretions are often ovoid or spherical in shape, although irregular shapes also occur. … Concretions form within layers of sedimentary strata that have already been deposited. They usually form early in the burial history of the sediment, before the rest of the sediment is hardened into rock.

Where can I find concretions?

Concretions are found near and far, from Western Kazakhstan to beaches in California. Usually the size of cannonballs, they form from water eroding a piece out of sedimentary rock. They almost look man-made. Many fossils of dead creatures have been found inside these strange deposits.

What are perfectly round rocks called?

concretions Completely round rocks, known as concretions, are simply a natural phenomenon.

What is Cordis?

Cordis, Latin for of the heart, may refer to: Community Research and Development Information Service (CORDIS)

What is Cordis catheter?

cordis is the preferred central line in trauma , unstable GI bleeds, ruptured AAAs, or any other situation in which the necessity for rapid transfusion of blood products is anticipated. It is a short, wide, single-lumen central venous catheter that is perfect for rapid large-volume infusions.

What does the name Cordis mean?

The name Cordis is a girl’s name of Latin origin meaning of the heart. Cordis is an unusual and substantial unisex choice.

What are concretion rocks?

Concretions are masses of mineral matter embedded within rock layers, including limestone, sandstone, and shale. They often take shape when minerals precipitating (settling) out of water collect around a nucleus, such as a pebble, leaf, shell, bone, or fossil.

Why are pebbles round?

Transport of pebbles in a stream causes them to collide and rub against one another and the stream bed, and the resulting abrasion produces the familiar smooth and rounded shape of river rocks.

What is the difference between a geode and a concretion?

Hollow with no quartz rind, but always called GEODES. … Fabulous and expensive specimens; hollow with crystals in the cavity, but always called CONCRETIONS and never geodes. Some additional forms are called NODULES while other round, hollow and solid crystal lined rocks are called other terms.

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What are concrete examples?

A concrete example is an example that can be touched or sensed as opposed to an abstract example which can’t be.

What does concrete answer mean?

a relating to or characteristic of things capable of being perceived by the senses, as opposed to abstractions. b (as n.) the concrete.

What is concrete made of?

To make concrete a mixture of portland cement (10-15%) and water (15-20%) make a paste. This paste is then mixed with aggregates (65-75%) such as sand and gravel, or crushed stone. As the cement and water mix, they harden and bind the aggregates into an impenetrable rock-like mass.

What does a rock hammer look like?

Shape. Geologist’s hammers, as with most hammers, have two heads, one on either side. Most commonly, the tool consists of a flat square head on one end, with either a chisel or a pick head at the other end. A corner or edge of the flat head is used to deliver a blow to a rock with the intention of splitting it.

How do you open a fossil rock?

What is tiny concretion in kidney?

Renal concretions, commonly known as kidney stones, are small crystal lumps of different substances, such as salt, calcium, uric acid, and other minerals. They form as hard, pebble-like deposits which can range from anywhere between the size of a kernel to a grain of salt, or a sugar cube to a ping pong ball.

What causes cross bedding?

Cross-bedding is formed by the downstream migration of bedforms such as ripples or dunes in a flowing fluid. … Cross-bedding can form in any environment in which a fluid flows over a bed with mobile material. It is most common in stream deposits (consisting of sand and gravel), tidal areas, and in aeolian dunes.

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How long do concretions take to form?

However, our results show that concretions grow at a very fast rate over several months to several years. This rapid sealing mechanism could explain why some concretions contain well-preserved fossils of soft tissues that are rarely fossilized under other conditions.

What’s inside a geode?

Most geodes contain clear quartz crystals, while others have purple amethyst crystals. Still others can have agate, chalcedony, or jasper banding or crystals such as calcite, dolomite, celestite, etc. There is no easy way of telling what the inside of a geode holds until it is cut open or broken apart.

How are kettle rocks formed?

The kettles formed about 370 million years ago. Layers of muddy sediment settled at the bottom of a very deep sea. Bacteria in the mud caused tiny concretions to form. … Over time the mud hardened into sedimentary rock.

What is a concretion in the eye?

Concretions are small white or yellowish dots, usually less than 1mm in diameter, commonly seen on the undersides of the eyelids. They contain cell debris and calcium. They may be the result of past inflammation. Occasionally they cause irritation or the feeling that there is something in the eye.