Slate is primarily a sedimentary rock, originating from very fine clays deposited in deep water - or at least distant from shore. It is only mildly metamorphosed by heat and pressure. Often a good source of fossils.
Obsidian on the other hand is volcanic glass, generally derived from melting and re-freezing of rhyolite lava
Slate rock is a homogeneous mixture, specifically a metamorphic rock composed of fine-grained minerals such as clay and mica that have undergone intense heat and pressure, resulting in its unique layered structure and smooth texture.
The chemical formula for slate is primarily composed of silicate minerals, such as quartz, feldspar, and mica. However, since slate is a metamorphic rock formed from shale or clay, its exact chemical composition can vary depending on the specific minerals present in the parent rock.
Slate is typically dull in appearance. It has a matte finish and does not have a shiny or reflective surface.
Slate grey and graphite grey are similar colors but have slight differences. Slate grey tends to have more of a blue or green undertone, while graphite grey tends to have a dark, matte finish resembling the color of graphite pencils. Additionally, graphite grey may appear slightly darker than slate grey.
It is not recommended to use bleach to clean slate as it can damage the surface and alter its natural appearance. Instead, use a mild detergent and warm water solution to clean slate surfaces effectively.
Slate is formed when clay is squashed under extreme temperature and pressure under the Earth. You can't make it at home!
yes
No
Obsidian, Granite, and i believe slate
No
Synonyms for obsidian are brunet, charcoal, coal, ebony, pitch, raven, slate, sable, clouded, dusky, and somber. Antonyms for obsidian are white and clean.
Heat and pressure change shale into metamorphic rock, specifically slate when exposed to low to moderate levels of heat and pressure, and then further into phyllite, schist, and gneiss as the intensity of heat and pressure increases.
Shale turns into slate, granite into gneiss.
when shale is subjected to heat and pressure, it can be metamorphosed into slate.
Shale changes into slate through a process called metamorphism, which involves heat, pressure, and chemical changes. The heat and pressure cause the minerals in the shale to recrystallize into a denser, more compact form, resulting in the fine-grained texture and foliation characteristic of slate. The composition of the original shale, as well as the intensity and duration of the metamorphic conditions, influence the final characteristics of the slate.
Slate starts as clay. Thhrough erosion and nature, the clay can change to shale or slate. Shale happens when layers upon layers are of clay and sediment are piled together and held in place with something very very heavy. Slate is altered shale that had low heat and not very much pressure put on it. It takes thousands of years for slate to change. Slate can be any color but is mostly found in gray or black. When it is broken, it splits into layers.
no slate is an igneous rock