a slate during the civil war was something you wrote your homework or school work in
it not a slate is a hand hold chalkboard
I think it is either slate or quartz
Shale (a sedimentary rock) transforms naturally into slate (a metamorphic rock) after millions of years of burial deep in the crust under high temperature and pressure. It it not possible to artificially transform shale into slate.
Slate is a foliated metamorphic rock.
Slate is derived from it's parent rock, which is shale. Slate is a metamorphic rock that is composed of microcrystals.
Alun John Richards has written: 'Welsh slate craft' -- subject(s): Slate industry, History 'A Gazeteer of the Welsh Slate Industry' 'The Slate Railways of Wales' 'Crefftwyr llechi' -- subject(s): Slate industry, History 'Slate quarrying in Wales' -- subject(s): History, Slate industry, Slate, Stone-cutters, Quarries and quarrying
Slate roofs were once very popular. Turkey calls are made from slate. Sinks have been made with slate. Patios, walkways, stones to sharpen knives, even tabletops have been made from slate. Slate is used in buildings, roofs for example, Slate tiles are often used for interior and exterior flooring, stairs etc, and because it is a good electrical insulator and fireproof, it was used to construct early 20th century electric switchboards and relay controls for large electric motors. Fine slate can also be used as a whetstone to hone knives.
slate
Slate was used for countertops, chalkboards, and is still used in roofing and pavers.
The answer is Slate. It is similar to Shale. It is still used but much less than 80 years ago. Slate is used in upscale roofing applications.
Victorian slate boards were mostly used by children in schools. Children used slate boards to learn how to write and spell.
A slate is used for comparing children to because it makes them seem blank.
it not a slate is a hand hold chalkboard
Writing on Slate Boards. If you don't know what a Slate Board is, then I suggest you Google it.
Slate can be used for blackboards, roofing and floors. When you crush it, you can use it flooring and paints.
Slate roofs were once very popular. Turkey calls are made from slate. Sinks have been made with slate. Patios, walkways, stones to sharpen knives, even tabletops have been made from slate. Slate is used in buildings, roofs for example, Slate tiles are often used for interior and exterior flooring, stairs etc, and because it is a good electrical insulator and fireproof, it was used to construct early 20th century electric switchboards and relay controls for large electric motors. Fine slate can also be used as a whetstone to hone knives.
Alan Holmes has written: 'Slates from Abergynolwyn' -- subject(s): History, Slate, Slate industry