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In February 2009, slate.fr, a French-language offshoot of Slate, was launched. Its five founders were: Le Monde editors Jean-Marie Colombani and Éric Leser [fr], Libération and 20 minutes editor Johan …

Slate is a metamorphic rock of sedimentary origin, of Ordovician age (550 million years) and its main components are quartz, sericite and minerals from the chlorite group.

SLATE meaning: 1 : a type of hard rock that splits easily into thin layers; 2 : a small sheet of slate in a wooden frame that was used in schools in the past for writing on with chalk

Nov 19, 2025 · We install and service all types of high-end and specialty steep roofing products including natural slate, composite slate, cedar shakes and shingles and composite roofing tiles.

SLATE meaning: 1. a dark grey rock that can be easily divided into thin pieces, or a small, thin piece of this…. Learn more.

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It may mean a single roofing tile made of slate, or a writing slate, which was traditionally a small, smooth piece of the rock, often framed in wood, used with chalk as a notepad or notice board, and especially …

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