![]() Here at UK Slate, we strive to meet and exceed the needs and expectations of our customers. This slate is available in many sizes and thickness with specifications that can be tailored to the required aesthetics of the project. This heather slate is sourced near Bethesda in North Wales, and has been crafted by many generations of people from all walks of life since early Roman times. The Welsh Heather Blue slate is very rare in the industry. It makes a lovely, subtle backdrop to plant or garden features. It is quarried in North Wales from Penrhyn Quarry its purple heather colour has tones of blue and green running through. This Welsh Plum Slate Aggregate is a stunning colour and perfect for domestic landscaping. Haematite is not visible to the naked eye but can be recognised by its purple colour.Īt UK Slate, we have a range of purple slates available: It is the most durable form of iron and not affected by exposure. Haematite is an oxide of iron found in slates formed from deposits laid down in oxidising conditions. Purple slate is beautiful in colour and is caused by haematite. They cover the ground well and are noticeable when laid in and around planting schemes. These oversized aggregates add a big texture to any area and look great in any water-based project. These Lakeland Blue Grey Slate Aggregates are quarried from the edge of the Lake District and are perfect for domestic landscaping projects as well as commercial developments. The stunning blue/black colour of this slate gives a perfect effect to finished roofs with its nice surface grain texture. Levendale Blue Black slate is produced by a relatively small quarry in North West Spain. Its main mineral composition is calcium carbonate.Īt UK Slate, we have a range of blue slates available: Blue Slateīlue slate is a kind of aqueous sedimentary rock, it tends to be crossed over with grey to give a blue-grey tone. Quarried in the heart of the Lake District, this slate is a stunning pale green with tones of grey running through it makes the perfect backdrop for plant or garden features. These Lakeland Green Decorative slate chippings are ideal for an extensive range of domestic landscaping projects and commercial developments. In more recent times it has also been approved on specific English Heritage projects, Crown Estates and in several National Parks. Vermont Structural Unfading Green slate has been used in the UK dating back to the 1890’s where the slate is still on the roof today doing what it was made to do – protect the building from the harsh elements. When chlorite is present in sufficiently high concentration, it gives slate a green colour.Īt UK Slate, we have a range of beautiful green slate available for a wide range of applications: They most often form in rock environments where minerals are altered by heat, pressure and chemical activity. In slates that appear green, this is due to chlorite – a group of common sheet silicate minerals that form during the early stages of metamorphism. The minerals inside slate is what determines its colour. Due to slate’s defined lines of breakability – cleavage and grain – it is possible to split slate into thin sheets, and this makes them ideal for turning them into materials such as roof slates. Natural slate is a fine-grained metamorphic rock composed of sedimentary or volcanic ash deposits which, through metamorphism, have been chemically and structurally changed. Slate is a type of rock that has many natural occurring colour variations. ![]() ![]() These various naturally occurring colours are a result of slate composition and the location where the slate is found. Name where the rocks have been lightly metamorphosed.There are many different types of slate with varying colours including: On that route "shale" has been converted into "slate." It can be difficult to pick up a rock and apply the proper You will have a difficult time deciding where Imagineĭriving your car eastwards in Pennsylvania through areas of increasing metamorphism, starting where the rock isĭefinitely "shale" and stopping to examine rock at each outcrop. This confusion of terms partially arises from the fact that shale is progressively converted into slate. To use the word "slate" when talking about "shale." However, in the past the word slate was often used freely in reference for shale. ![]() The word "slate" has not been used consistently over time and in some industries. Image copyright iStockphoto / Bruce Lonngren. These slates were widely used until the late 1800s, when wood-case pencils were easily produced and the price of paper became affordable. Students wrote on the slate with a "pencil" made from slate, soapstone, or clay. School slate: School slate used for writing practice and arithmetic. ![]()
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