conchoidal in a sentence
Examples
- To make a stone material ideal for tool production, it must be non-crystalline or glassy, which allows for conchoidal fracturing.
- Like all glass and some other types of naturally occurring rocks, obsidian breaks with a characteristic conchoidal fracture, creating razor sharp edges.
- Blows that result in deep conchoidal fractures ( the first phase of manufacture ) can be distinguished from features resulting from sharpening with a soft hammer.
- Also, it possesses dual quality of translucent to cleavage and distinct rhombohedral cleavage with hackly fracture, on the other side spherulitic grains are conchoidal.
- In amorphous solids, by contrast, the lack of a crystalline structure results in a conchoidal fracture, with cracks proceeding normal to the applied tension.
- Sepiolite is opaque and off-white, grey or cream color, breaking with a conchoidal or fine earthy fracture, and occasionally fibrous in texture.
- In most cases, the amount of pressure applied to the objective piece in soft-hammer percussion is not enough for the formation of a typical conchoidal fracture.
- Lead-grey in colour ( frequently displaying an iridescent tarnish ), its Mohs scale, has a density of approximately 6.4, and a conchoidal fracture.
- Prominent bulbs of force generally indicate that a hard hammer percussor ( hammerstone ) was used to detach the flake; flakes displaying this characteristic are referred to as conchoidal flakes.
- It is important to note that blade cores appear and are different from regular flaking cores, as each core's conchoidal nature is suited for different types of flaking.